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Item 6A 64 CITY OF SOUTHLAKE Department of Planning & Development Services STAFF REPORT August 15, 2017 CASE NO: ZA17-044 PROJECT: Zoning Change and Concept/Site Plan for TDDC Ambulatory Surgery Center Elevation Revisions EXECUTIVE SUMMARY: Corgan is requesting 2nd reading approval of a Zoning Change and Concept/Site Plan for Texas Digestive Disease Consultants (TDDC) Ambulatory Surgery Center on property described as Lot 4R, Block 5, Cornerstone Business Park, an addition to the City of Southlake, Tarrant County, Texas, and located at 515 S. Nolen Dr., Southlake, Texas. Current Zoning: "S-P-2" Generalized Site Plan District. Requested Zoning: "S-P-2" Generalized Site Plan District. SPIN Neighborhood #8. DETAILS: The property is located on the east side of S. Nolen Dr. approximately 1/4 mile south P P Y Pp Y of E. Southlake Blvd. The purpose of the request is to amend the "S-P-2" Generalized Site Plan District zoning for Lot 4R, Cornerstone Business Park to revise the previously approved elevations for the TDDC Ambulatory Surgery Center. The applicant is proposing a stucco facade on portions of the northwest and northeast sides of the building where a glass façade was previously approved. Changes to the parapet heights and the length of the blade wall were originally requested, but those changes were removed from the request after the Planning and Zoning Commission denied the changes at their June 8, 2017 meeting and City Council denied the changes at 1st reading at their June 20, 2017 meeting. No other changes to the previously approved "S-P-2" zoning are proposed and all previous conditions of approval remain in effect. City Council approved a Zoning Change and Concept/Site Plan (ZA16-044) on September 6, 2016 to allow "0-1" Office District uses to include an ambulatory surgery center as a permitted use on Lot 4R, Cornerstone Business Park and a Concept/Site Plan for an approximately 11,000 square foot, one-story ambulatory surgery center on approximately 1.558 acres. Site Data Summary Lot 4R Existing Zoning S-P-2 Generalized Site Plan District Proposed Zoning S-P-2 Generalized Site Plan District Land Use Designation Industrial Gross/Net Acreage 1.558 ac. Total Building Floor Area (Gross) 11,000 sq. ft. Building Height/Number of Stories 18'/ 1 story Open Space % 37% Impervious Coverage % 63% Total Parking Required (S-P-2) 48 Total Parking Spaces Provided 48 Case No. ZA17-044 • i it r4. The chart below summarizes the "S-P-2" amendments to the base "0-1" Office District uses and regulations that were previously approved: "C-3" General Regulation "0-1" Office District Commercial S-P-2 Regulation District Ambulatory Surgery Center No Yes Yes Allowed 1 space per 150 SF for 10 spaces per procedure Parking Medical Office _ room @ 5 rooms (reduced to 48 spaces in (74 spaces) Council motion at 2nd reading) Loading Spaces One (1) 10' x 50' One (1) 10' x 50' One (1) 10' x 35' The City Council approved the item at 1st reading (4-2) at their June 20, 2017 meeting with the following stipulations: Council 1st Reading Issues/Conditions Applicant's Response Not approving any change to the blade wall. The elevations have been revised the show the blade wall as originally approved. Not approving the reduction of the wall height on The elevations have been revised the show the northwest elevation. the northwest wall height as originally approved. Not approving the reduction of the wall height on The elevations have been revised the show the northeast elevation the northeast wall height as originally approved. _ Approving an increase to the wall height on the southwest elevation facing Nolen Dr. in order to The elevations have been revised to show the screen the mechanical equipment, noting that we southwest wall raised 4' to 22'. Approval of a are directing staff to quantify what that height variance to the vertical articulation requirement should be for consideration at 2nd reading; is now required. Based on the revisions to the plans to address issues raised at the Planning and Zoning Commission and City Council 1st reading, the changes to the originally approved plans are as follows: 1) The glass wall on the northeast elevation has been changed to stucco with punched window openings. 2) The parapet wall on the northwest elevation has been increased to screen the mechanical equipment from S. Nolen Dr. VARIANCE REQUESTED: Zoning Ordinance No. 480, Section 44.19.d.1.c(ii) requires that on all nonresidential buildings visible from rights-of-way as defined (including Nolen Dr.), no horizontal wall shall extend for a distance greater than three(3)times the height of the wall without changing height by a minimum of 15% of the wall's height, and such height change shall continue for a minimum distance equal to at least 25%of the maximum length of either adjacent plane. The maximum wall length allowed without vertical articulation is 66' (3 x 22'). A variance is requested to allow the Case No. ZA17-044 southwest wall to extend approximately 105' without vertical articulation. ACTION NEEDED: 1) Conduct a public hearing 2) Consider 2nd reading approval of a Zoning Change and Concept/Site Plan ATTACHMENTS: (A) Background Information (B) Vicinity Map (C) Revised Concept/Site Plan Review Summary No. 2, dated August 15, 2017 (D) Surrounding Property Owners Map and Responses (E) Ordinance No. 480-439D (F) Half Size Plans (for Commission and Council members only) Link to PowerPoint Presentation Link to Narrative Letter Link to Plans Link to Acoustical Reports Link to SPIN meeting Report Case No. ZA17-044 STAFF CONTACT: Ken Baker (817) 748-8067 Richard Schell (817) 748-8602 Case No. ZA17-044 BACKGROUND INFORMATION OWNER: Spelunker Properties VII, LLC APPLICANT: Corgan PROPERTY SITUATION: 515 S. Nolen Dr., generally located on the east side of S. Nolen Dr. approximately %4 mile south of E. Southlake Blvd. LEGAL DESCRIPTION: Lot 4R, Block 5, Cornerstone Business Park LAND USE CATEGORY: Industrial CURRENT ZONING: "S-P-2" — Generalized Site Plan District PROPOSED ZONING: "S-P-2" Generalized Site Plan District to allow"0-1" Office District uses to include an ambulatory surgery center as a permitted use on Lot 4R HISTORY: -A zoning change from "AG" to "0-1" and "I-1" on the west portion of this property as well as a Preliminary Plat were approved by the City in May of 1997. -A Final Plat (ZA97-114) was approved by the City on September 4, 1997. -City Council approved a zoning change (ZA02-018) from"0-1"and "I-1"to "S-P-2" with "I-1" uses on the western portion of the property and an associated concept plan on July 16, 2002. -A zoning change and concept plan (ZA04-021) from "AG" Agricultural District and "S-P-2" General Site Plan District to "S-P-2" General Site Plan District with "C-2" Local Retail Commercial District and "I-1" Light Industrial District uses was approved by City Council on June 15, 2004. -A plat revision (ZA04-065) was approved by City Council on October 15, 2004. -A zoning change and site plan (ZA10-065) for Lot 5R1 (Texas Digestive Disease Consultants) from "S-P-2" General Site Plan District to "S-P-2" General Site Plan District was approved by City Council on January 18, 2011. -A zoning change and Concept/Site Plan (ZA11-027) for from "S-P-2" General Site Plan District to "S-P-2" General Site Plan District to add 15 parking spaces and to reconfigure driveways on Lots 1R, 2R1 R, 3R, 4R and 5R1, Block 5, Cornerstone Business Park. The Concept/Site Plan was revised to remove the shared parking and common access drives that connected Lot 1R with Lot 2R1 R on the existing concept plan to create a stand-alone lot. The approved plan allows the development of Lot 1R without installing a drainage pipe and covering the existing ditch. The zoning change was approved by Council on October 18, 2011. -A zoning change and Concept/Site Plan (ZA16-044) for from "S-P-2" General Site Plan District to"S-P-2" General Site Plan District to allow"0-1" Office District uses to include an ambulatory surgery center as a permitted use on Lot 4R and to seek approval of a Concept/Site Plan for an approximately 11,000 square foot, one-story ambulatory surgery center on approximately 1.558 acres was approved September 1, 2016. SOUTHLAKE 2030 PLAN: Consolidated Future Land Use Plan The 2030 future land use designation for the site is "Industrial". Case No. Attachment A ZA17-044 Page 1 Industrial and business service development that is relatively free of unwanted side effects, such as unsightliness, noise, odor, glare,vibrations, etc., is permitted in the Industrial category. If meeting the qualification of relatively free of unwanted side effects, suitable types of development in the Industrial category can be characterized by the manufacturing, processing, packaging, assembly, storage,warehousing and/or distribution of products. Ancillary commercial and retail activities associated with these uses are permitted. Public Parks/Open Space and Public/Semi-Public activities as described above may be permitted if surrounding industrial uses do not pose hazards and are sufficiently buffered. Mobility& Master Thoroughfare Plan S. Nolen Dr. is shown as a three-lane undivided arterial with 70' of right of way from E. Southlake Blvd. to Crooked Lane. South of Crooked Lane, S. Nolen Drive is a local commercial street with 60' of existing right of way. Adequate right-of way has previously been dedicated adjacent to the proposed development. Pathways Master Plan & Sidewalk Plan The 2030 Pathways Master Plan shows a <8' sidewalk along both sides of S. Nolen Dr. between E. Southlake Blvd. and Crooked Lane and a <8' sidewalk on the west side of S. Nolen Dr. between Crooked Lane and Silicon Dr. There is an existing 5' sidewalk on the TDDC lot at 505 S. Nolen Dr., which is directly in front of the subject lot. TRANSPORTATION ASSESSMENT: Area Road Network and Conditions South of Crooked Ln., S. Nolen Drive is a local commercial street with 60' of existing right of way. Traffic Counts N Kimball Avenue (74) (Between Crooked In. and S. Kimball Ave.) 24hr North Bound (2,205 South Bound 1,927 AM Peak AM 208 7:15—8:15 AM Peak AM 125 11:45— 12:45 AM PM Peak PM 161 3:45—4:45 PM Peak PM 214 16:30— 17:30 PM Based on the 2015 City of Southlake Traffic Count Report Traffic Impact A Traffic Impact Analysis (TIA) was not required for this development. Traffic Impact Use Area/Units Vtpd` AM AM PM- PM IN OUT IN OUT ITE Code(720) -----_ Medical Office Bld•. 11,000 s.f. 235 32 8 20 29 * Vehicle Trips Per Day *AM-In,AM-Out, PM-In and PM-Out are peak hour generators on a weekday *Based on the ITE: Trip Generation Manual, 7th Edition Case No. Attachment A ZA17-044 Page 2 TREE PRESERVATION: The site is subject to the City's Tree Preservation Ordinance No. 585-D • because it is being rezoned. No changes to the previously approved Tree Conservation Plan are proposed with this request. A Tree Conservation Plan is subject to City Council approval with an "S-P- 2" zoning request. If the zoning change request was for straight zoning, it would not comply with the Existing Tree Cover Regulations of the Tree Preservation Ordinance. There is 54% of existing tree cover on the site and 50% of the existing tree cover would be required to remain. The previously approved plan showed 45% of the existing tree canopy to remain. UTILITIES: An 8"water line and an 8" sanitary sewer line were extended to the property with previous development. DRAINAGE: The drainage is generally south to north across the property to inlet grates in the existing driveway and to a drainage area along the east property line. CITIZEN INPUT: The following meetings were held to discuss the development: A SPIN meeting was held for this project on May 24, 2016. A link to the report is provided. Link to SPIN Report PLANNING AND ZONING COMMISSION ACTION: June 8, 2017; Approved (3-1)subject to the staff report dated June 2, 2017 and Concept/Site Plan Review Summary No. 2, dated June 2, 2017 specifically denying the changes requested related to the blade wall shortening and the shortening of the height of a portion of the southeast façade noting the applicant's willingness to provide alternative colors for view for Council on the stucco wall exteriors especially the northeast elevation and also specifically noting the applicant's willingness to present alternative options that they reviewed in arriving at this recommendation and including any and all sound engineering reports and making a sound engineer available for consultation. CITY COUNCIL ACTION: June 20, 2017; Approved at 1st reading (4-2) subject to the staff report dated June 13, 2017 and Concept/Site Plan Review Summary No. 2,dated June 2, 2017 noting the following: • Not approving any change to the blade wall; • Approving the building materials on the northwest elevation to be changed from glass to stucco with glass punched windows to match the exhibits presented this evening; • Not approving the reduction of the wall height on the northwest elevation; • Not approving the reduction of the wall height on the northeast elevation; • Approving an increase to the wall height on the southwest elevation facing Nolen Dr. per the exhibit shown this evening in order to screen the mechanical equipment, noting that we are directing staff to quantify what that height should be for consideration at 2nd reading; • All other approvals from the prior consideration of this case remain in place. Case No. Attachment A ZA17-044 Page 3 STAFF COMMENTS: Attached is Revised Concept/Site Plan Review Summary No. 2, dated August 15, 2017. Case No. Attachment A ZA17-044 Page 4 Vicinity Map 515 S. Nolen Dr. \ 1214 3� 3y 3-- II ---. .ay bhr WFI% *-ci o Inall 111 '$ 1 - !'' hs. Il tet[ 'Pt* MIMI • T ■ in 1 l ' T� PkT - il 0 ri 1 gm ill..__, N:E-u_2 , e.vJ \i\--\ ht:'-,,,, ZA17-044 '1 Zoning Change and Concept/Site Plan 141, TDDC Ambulatory Surgery Center k*L1 " V'C ir'''� gSI. r E7 500 1 000 2.707 Feet r 5 Case No. Attachment B ZA17-044 Page 1 REVISED CONCEPT/SITE PLAN REVIEW SUMMARY Case No.: ZA17-044 Review No.: Two Date of Review: 08/15/17 Project Name: Site Plan —TDDC Ambulatory Surgery Center APPLICANT: Tina Larson OWNER: Dr. Timothy Ritter Corgan Spelunker Properties VII, LLC 401 N. Houston St. 701 E. Bethel Rd. Dallas, TX 75202 Coppell, TX 75019 Phone: (214) 748-2000 _ Phone: (817) 424-1525 E-mail: tina.larsen@corgan.com Fax: (817) 424-3491 CITY STAFF HAS REVIEWED THE ABOVE REFERENCED PROJECT RECEIVED BY THE CITY ON 06/02/17 AND WE OFFER THE FOLLOWING STIPULATIONS. THESE STIPULATIONS ARE HEREBY MADE CONDITIONS OF SITE PLAN APPROVAL UNLESS SPECIFICALLY AMENDED BY THE CITY COUNCIL. IF YOU HAVE ANY QUESTIONS OR NEED FURTHER CLARIFICATION, PLEASE CONTACT RICHARD SCHELL AT (817) 748-8602. 1. No changes to the previously approved plans other than the ones shown on the currently submitted plans are proposed and all previous conditions of approval remain in effect. General Informational Comments • Zoning Ordinance No. 480, Section 44.19.d.1.c(ii) requires that on all nonresidential buildings visible from rights-of-way as defined (including Nolen Dr.), no horizontal wall shall extend for a distance greater than three (3) times the height of the wall without changing height by a minimum of 15% of the wall's height, and such height change shall continue for a minimum distance equal to at least 25% of the maximum length of either adjacent plane. The maximum wall length allowed without vertical articulation is 66' (3 x 22'). A variance is requested to allow the southwest wall to extend approximately 105' without vertical articulation. • A SPIN meeting for the TDDC Ambulatory Surgery Center (ZA16-044) was held May 24, 2016. • No review of proposed signs is intended with this site plan. A separate building permit is required prior to construction of any signs. • All mechanical equipment must be screened of view from right-of-ways and residential properties in accordance with the Zoning Ordinance No. 480, as amended. ▪ All lighting must comply with the Lighting Ordinance No. 693, as amended. • All development must comply with the Drainage Ordinance No. 605 and the Erosion and Sediment Control Ordinance No. 946, as amended. • It appears that this property lies within the 75 LDN D/FW Regional Airport Overlay Zone and will require construction standards that meet requirements of the Airport Compatible Land Use Zoning Ordinance No. 479. • Development must comply with all requirements in Zoning Ordinance No. 480, Section 43, Overlay Zones except as noted in the previously approved S-P-2 regulations. Case No. Attachment C ZA17-044 Page 1 • The applicant should be aware that prior to issuance of a building permit, a fully corrected site plan, landscape plan, irrigation plan, and building plans, must be submitted for approval and all required fees must be paid. This may include but not be limited to the following fees: Park Fee, Perimeter Street Fee, Water & Sewer Impact and Tap Fees, and related Permit Fees. • The previous City Council motion for approval of the "S-P-2" Zoning Change and Concept/Site Plan for the TDDC Ambulatory Surgery Center is below for reference purposes: September 6, 2016; Approved at 2nd reading subject to Staff Report dated August 30, 2016 and Concept/Site Plan Review Summary No. 3 dated July 28, 2016 and noting: Accepting the revised Corner Stone Business Park revised SP-2 regulations and noting the following changes for Lot 5 (aka Lot 4R, Block 5): • Allowing the uses permitted in the 0-1 office district to also include ambulatory surgery center as a permitted use; • Revising regulation #4 to state that the required parking for lot 4R, Block 5 will be 9.6 spaces per procedure room at 5 rooms not to exceed 48 spaces in total; • Accepting regulation #5 as it relates to the loading space requirement of one loading space at 10' x 35'; • Accepting regulation #8 accepting the tree preservation plan as presented; and, • Finally accepting the revised landscape/site plan presented this evening showing a reduction in parking from 50 spaces to 48 spaces and noting additional planting of one Live Oak and 65 Mexican Feathergrass plants. • Denotes Informational Comment Case No. Attachment C ZA17-044 Page 2 SURROUNDING PROPERTY OWNERS MAP & RESPONSES Z P 1I I •L* ll ._..L_N. 1 rilliffirl I 11110_,E, III III — Mirn •o- --414111111 - !.•1$illirpe lilili''' KFgwo :lRERDRI. '9 Z' 9 W - " /�'� p� T N431P-1 r R i 111PM\S : I $ As, 1111111 9 ZeV . .as 8 I , ' B o-rI r n q. L.1 ® r0 .- =I- it A r . 1 'Y Pao oil a e . 0. m - s Po R 9 r __ r i E SSS =tf c'cl"r' ''' y6 YTf P 3 W (-----1 . r d 1 iirOwner Property Address Acreage Response 2707 E SOUTH LAKE 1 NR BTR-8 SOUTHLAKE LLC BLVD 5.76 2757 E SOUTH LAKE 2 NR ORION SKY PROPERTIES LLC BLVD 3.61 3 2801 E SOUTHLAKE NR ALBION IRON LLC BLVD 1.74 4 SHURGARD/FREEMONT 2855 E SOUTH LAKE NR PARTNERS 11 BLVD 4.67 5. TRUEZERO PROPERTIES LLC 305 S NOLEN DR 1.56 NR 6. PONY INVESTMENTS LLC 405 S NOLEN DR 2.53 NR HARBOR TOWN PARTNERS 7 NR LP 415 S NOLEN DR 2.73 8. BBJ & E LTD 2860 MARKET LOOP 1.99 NR 9. GATEWAY CHURCH 500 S NOLEN DR 5.54 NR 10. AKP MANAGEMENT LLC 2850 MARKET LOOP 1.44 NR SOUTHLAKE FLEX 11. PROPERTIES LLC 525 S NOLEN DR 1.63 NR 12. MARKET LOOP PARNTERS 2830 MARKET LOOP 1.66 NR SOUTH LAKE FLEX 13. PROPERTIES LLC 535 S NOLEN DR 1.64 NR 14. CHARLESTON COURT LP 545 SILICON DR 2.59 NR Case No. Attachment D ZA17-044 Page 1 PATTERSON SOUTH LAKE 15. NR FAM PROP 530 S NOLEN DR 1.07 16. SOUTH LAKE FLEX NR PROPERTIES LLC 545 S NOLEN DR 1.62 17. GATEWAY CHURCH 540 5 NOLEN DR 1.55 NR 18. FULBRIGHT MAYS TRUST 2825 EXCHANGE BLVD 1.15 NR 19 PARAGON PROPERTY NR HOLDINGS LP 515 S NOLEN DR 1.55 20. SEVENINVEST LLC 505 S NOLEN DR 2.65 NR 21. CHARLESTON COURT LP 530 SILICON DR 4.85 NR 22. 1700LACY LLC 2815 EXCHANGE BLVD 1.76 NR 23. DRS GROUP LLC 2819 EXCHANGE BLVD 0.93 NR 24. MPA SOUTH LAKE MOB LLC 300 5 NOLEN DR 1.84 NR 25. CARBIUM CAPITAL LLC 410 S NOLEN DR 0.60 NR 26. CARBIUM CAPITAL LLC 416 S NOLEN DR 0.60 NR 27. MYAN PLAZA LP 520 SILICON DR 1.43 NR 28. CARBIUM CAPITAL LLC 512 SILICON DR 0.65 NR 29. CARBIUM CAPITAL LLC 516 SILICON DR 0.73 NR 30. CARBIUM CAPITAL LLC 508 SILICON DR 0.66 NR 31. ZADA M WHITE ESTATE NR TRUST 2450 CROOKED LN 12.66 Responses: F: In Favor 0: Opposed To U: Undecided NR: No Response Notices Sent:Twenty-three (23) Responses Received within 200': None (0) -Attached Case No. Attachment D ZA17-044 Page 2 CITY OF SOUTHLAKE, TEXAS ORDINANCE NO. 480-439D AN ORDINANCE AMENDING ORDINANCE NO. 480, AS AMENDED, THE COMPREHENSIVE ZONING ORDINANCE OF THE CITY OF SOUTHLAKE, TEXAS; GRANTING A ZONING CHANGE ON A CERTAIN TRACT OR TRACTS OF LAND WITHIN THE CITY OF SOUTHLAKE, TEXAS BEING LEGALLY DESCRIBED AS LOT 4R, BLOCK 5 CORNERSTONE BUSINESS PARK, AN ADDITION TO THE CITY OF SOUTHLAKE, TARRANT COUNTY, TEXAS, BEING APPROXIMATELY 1.558 ACRES,AND MORE FULLY AND COMPLETELY DESCRIBED IN EXHIBIT "A" FROM "S-P-2" GENERALIZED SITE PLAN DISTRICT TO "S-P-2" GENERALIZED SITE PLAN DISTRICT AS DEPICTED ON THE APPROVED CONCEPT/SITE PLAN ATTACHED HERETO AND INCORPORATED HEREIN AS EXHIBIT "B", SUBJECT TO THE SPECIFIC REQUIREMENTS CONTAINED IN THIS ORDINANCE; CORRECTING THE OFFICIAL ZONING MAP; PRESERVING ALL OTHER PORTIONS OF THE ZONING ORDINANCE; DETERMINING THAT THE PUBLIC INTEREST, MORALS AND GENERAL WELFARE DEMAND THE ZONING CHANGES AND AMENDMENTS HEREIN MADE; PROVIDING THAT THIS ORDINANCE SHALL BE CUMULATIVE OF ALL ORDINANCES; PROVIDING A SEVERABILITY CLAUSE; PROVIDING FOR A PENALTY FOR VIOLATIONS HEREOF; PROVIDING A SAVINGS CLAUSE; PROVIDING FOR PUBLICATION IN THE OFFICIAL NEWSPAPER; AND PROVIDING AN EFFECTIVE DATE. WHEREAS, the City of Southlake, Texas is a home rule City acting under its Charter adopted by the electorate pursuant to Article XI, Section 5 of the Texas Constitution and Chapter 9 of the Texas Local Government Code; and, WHEREAS, pursuant to Chapter 211 of the Local Government Code, the City has the authority to adopt a comprehensive zoning ordinance and map regulating the location and use of buildings, other structures and land for business, industrial, residential and other purposes, and to amend said ordinance and map for the purpose of promoting the public health, safety, morals and general welfare, all in accordance with a comprehensive plan; and, WHEREAS, the hereinafter described property is currently zoned as"S-P-2" Generalized Site Plan District under the City's Comprehensive Zoning Ordinance; and, Case No. Attachment E ZA17-044 Page 1 WHEREAS, a change in the zoning classification of said property was requested by a person or corporation having a proprietary interest in said property; and, WHEREAS, the City Council of the City of Southlake, Texas, at a public hearing called by the City Council did consider the following factors in making a determination as to whether these changes should be granted or denied: safety of the motoring public and the pedestrians using the facilities in the area immediately surrounding the sites; safety from fire hazards and damages; noise producing elements and glare of the vehicular and stationary lights and effect of such lights on established character of the neighborhood; location, lighting and types of signs and relation of signs to traffic control and adjacent property; street size and adequacy of width for traffic reasonably expected to be generated by the proposed use around the site and in the immediate neighborhood; adequacy of parking as determined by requirements of this ordinance for off-street parking facilities; location of ingress and egress points for parking and off-street loading spaces, and protection of public health by surfacing on all parking areas to control dust; effect on the promotion of health ad the general welfare; effect on light and air; effect on the over-crowding of the land; effect on the concentration of population, and effect on transportation, water, sewerage, schools, parks and other public facilities; and, WHEREAS, the City Council of the City of Southlake, Texas, further considered among other things the character of the districts and their peculiar suitability for particular uses and the view to conserve the value of the buildings, and encourage the most appropriate use of the land throughout this City; and, WHEREAS, the City Council of the City of Southlake, Texas, does find that there is a public necessity for the zoning changes, that the public demands them, that the public interest clearly requires the amendments, and that the zoning changes do not unreasonably invade the rights of those who bought or improved property with reference to the classification which existed Case No. Attachment E ZA17-044 Page 2 at the time their original investment was made; and, WHEREAS, the City Council of the City of Southlake, Texas, does find that the changes in zoning lessen the congestion in the streets, helps secure safety from fire, panic, and other dangers, promotes the health and the general welfare, provides adequate light and air, prevents the over-crowding of land, avoids undue concentration of population, and facilitates the adequate provision of transportation, water, sewerage, schools, parks and other public requirements; and, WHEREAS, the City Council of the City of Southlake, Texas, has determined that there is a necessity and need for the changes in zoning and has also found and determined that there has been a change in the conditions of the property surrounding and in close proximity to the tract or tracts of land requested for a change since the tract or tracts of land were originally classified and therefore feels that the respective changes in zoning classification for the tract or tracts of land are needed, are called for, and are in the best interest of the public at large, the citizens of the city of Southlake, Texas, and helps promote the general health, safety and welfare of the community. NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF SOUTHLAKE, TEXAS: SECTION 1. That Ordinance No. 480, the Comprehensive Zoning Ordinance of the City of Southlake, Texas, passed on the 19th day of September, 1989, as originally adopted and amended, is hereby amended so that the permitted uses in the hereinafter described areas be altered, changed and amended as shown and described below: Being described as Lot 4R, Block 5 Cornerstone Business Park, an addition to the City of Southlake, Tarrant County, Texas, being approximately 1.558 acres, and more fully and completely described in Exhibit "A" from "S-P-2" Generalized Site Plan District to "S-P-2" Generalized Site Plan District as depicted on the approved Concept/Site Plan attached hereto and incorporated herein as Exhibit "B", and subject to the following conditions: Case No. Attachment E ZA17-044 Page 3 S-P-2 Regulations with Ord. No. 480-439 June 15, 2004 (ZA04-021) CORNERSTONE BUSINESS PARK USE AND DEVELOPMENT REGULATIONS FOR"5—P-2 for C-2/I-1"ZONING PERMRTED USES:(LOT I) ZONING FOR THIS LOT SHALL PERMIT ALL-C-2'LOCAL RETAIL COMMERCIAL DISTRICT AREA USES,ACCORDING TO ZONING ORDINANCE NO.480,SECTION 21. PERMITTED USES: (LOTS 1,2,3,4&5) EXCLUDED USES. PERMITTED USES: 21)Machine shop 1)Sexuall-oriented businesses 1)Any use permitted in the 0-1 Office District 22)Mattress manufacturing or mattress renovation 2)Blackemithing or Name shoeing 2)Aluminum product fabrication 23)Manufacturing of medical or dental equipment 3)Candle manufacturing 3)Armature winding 24)Monument manufacture 4)Creamery and dairy product processing 4)Bakery,wholesale 25)Omomenta(Iron works 5)Egg storage,candling,sorting and grading 5)Broom manufacturing 26)Pest control businesses 6)Farrier(honseshoeing) 6)Cabinet or carpentry shop 27)Plastic fabrication 7)Feed stores 7)Candy plant or production facility 28)Plumbfng,heating,refrigeration ar air 8)Ice manufacturing and bulk Ice storage 8)Carpet cleaning operations conditioning shop 9)Mini—warehouses 9)Clothing manufacturing 29)Public utility facilities 10)Cold storage warehouse without sloe limitation 30)Pump sales and service 11)Commercial school.Including trade school 31)Roofing contractor business premises 12)Compounding of cosmetics and toiletries 32)Sash and door manufacturing 13)Seatranic components manufacturing and assembly 33)Sheet metal shop 14)Glass blowing 34)Sign manufacturing 15)Ice cream manufacturing 35)Spray painting shop 18)Insulation application business 36)Store fixture manufacturing and sales 17)Irrigation sales and services,including pumps and 37>Wore/roue. equipment 38 Welding equipment and supplies 18)Janitorial or cleaning serve 39)Community Facility Done—City hall,pollee and 19)Laboratory,chemical analysis,general analysis. fire stations and other municipal uses physical testing 40)Health and physical fitness centers and 20)linen and towel service gymnasiums,not to exceed 18.000 square feet DEVELOPMENT REGULATIONS: THIS PROPERTY SHALL BE SUBJECT TO THE DEVELOPMENT REGULATIONS OF THE'I-1'LIGHT INDUSTRUL DISTRICT.SECTOR 26 OF ZONING ORDINANCE NO.480,AS AMENDED, AND ALL OTHER APPLICABLE REGULATIONS OF ZONING ORDINANCE NO 480,AS AMENDED,WITH THE FOLLOWING EXCEPTIONS: 1.LANDSCAPE AREAS ADJACENT TO THE COMMON PROPERTY UNES THAT ARE PROVIDED IN LIU OF THE INTERNAL BUFFERYARD ARE SUBJECT TO THE LANDSCAPE ADMINISTRATORS APPROVAL 2.MAXIMUM IMPERVIOUS COVERAGE LIMITED TO A MAXIMUM OF 75%FOR LOT 1,81,2%FOR LOT 2,BOR FOR LOTS 3,4 AND 5,MAXIMUM IMPERVIOUS COVERAGE FOR TOTAL SITE NOT TO EXCEED 75X. 3.NUMBER OF PARKING SPACES REQUIRED/PROVIDED MAY BE ADJUSTED+/—10%,PROVIDED THAT IN NO CASE SHALL MAXIMUM STE IMPERVIOUS COVERAGE EXCEED 75% 4.ALL BUILDING FOOTPRINTS/SQUARE FOOTAGES SHALL BE RESTRICTED TO+/—10%OF FOOTPRINTS/SQUARE FOOTAGES SHOWN. 5.THE F-1 BUFFERYARD BETWEEN LOT 4 AND ADJACENT C-3 COMMERCIAL PROPERTY SHALL NOT BE REQUIRED,IN FAVOR OF THE EXISTING NATURAL DRAINAGE EASEMENT LOCATED BETWEEN LOT 4 AND COMMERCIAL PROPERTY TO THE NORTH WHICH SHALL REMAIN IN A NATURAL STATE 6.ALL LOTS(1-5)SHALL BE RELIEVED FROM RESIDENTIAL ADJACENCY REQUIREMENTS DUE TO LOCATION OF ALL PROPERTY WITHIN 400'FROM THIS DEVELOPMENT WITHIN 75 LDN NOISE CONTOUR ESTABLISHED BY AIRPORT COMPATIBILITY LAND USE ZONING ORDINANCE 8 479,WHICH PROVIDES THAT ALL RESIDENTIAL USE WITHIN THIS CONTOUR IS PROHIBITED. • Case No. Attachment E ZA17-044 Page 4 P&Z and City Council motions for Ord. No. 480-439 S-P-2 zoning approved June 15, 2004 (ZA04-021): P&Z Action - May 20, 2004;Approved (6-0)subject to Concept Plan Review Summary No. 2, dated May 14, 2004, as proposed; noting the applicant's willingness to leave the drainage area in a natural state, and to work with the landscape administrator in locating some required bufferyard plant material in the landscape areas along the sides of the buildings. Council Action -June 1, 2004;Approved first reading (7-0)subject to Concept Plan Review Summary No. 2, dated May 14, 2004; incorporating the recommendations of the Planning and Zoning Commission; and accepting the applicant's willingness to restrict the impervious coverage on Lot 1 to 75%, Lot 2 to 81.2%, a maximum of 80% on Lots 3, 4, and 5 with an overall combined maximum impervious coverage on all lots of 75%; and accepting the applicant's agreement to further eliminate the following I-1 uses: machine shop, mini-warehouses, aluminum product fabrication, broom manufacturing, cold storage warehouse, compounding of cosmetics and toiletries, janitorial or cleaning services, mattress manufacturing or renovation, and manufacturing of medical and dental equipment. June 15, 2004;Approved second reading (7-0)subject to Concept Plan Review Summary No. 3, dated June 9, 2004; and subject to conditions set at first reading. S-P-2 Regulations with Ord. No. 480-439a January 18, 2011 (ZA10-065) CORNERSTONE BUSINESS PARK USE AND DEVELOPMENT REGULATIONS FOR'S-P-2 for C-2/I-1 ZONING PERMITTED USES:(LOT I) 00,1100 FOR T)B5 101 SHALL PERMIT ALL"C-2'LOCAL RE161 COMMERCIAL USINICT AREA USES,ACCORDING TO ZONING ORDINANCE NO.A90,SECTION 21. PERMITTED USES (LOTS 1,2,3,A h 5) EXCLUDED USES: PERMITTED USES: 21)Llachew slop I Sesvary-alenled businesses ,)Any use permuted b the 0-I Dflk.D'Plllct 22)Metl,..0 mvnulacluring a.neltrns renowtlan 2 0nlA.cnllnNq or hares ahaeing 2)Aluminum product lcR.'olbn 23)MRRulaaturinq al Medica a d.rlld egafpnenl 3 Conde mecAfTAWrbq 3)Armature winding 24)UawmenI manufacture3 Creamery and awry product prvcssetng 3)Bakery.wholesale 25)Ornamented iron works 5)Egg storage,cernd1ng.styling and grading 5)Broom manufacturing 26)Pest"RUN 004010.08., 6)Ferrier(horseehcenmg) 6)Cabinet or cerpenlry.hep 27)Plastic lubrication 7)Feed states 7)Candy pion,or Production facOidy 28)Plumbing,heeling,reblgerOlbn or co I)Ice manufacturing and bulk Ice Mange B)Carpet deoning°paellon. aandllbnOg shop 9)MIN-emrehousos N)Clothing rnoRV'ocIurinq 79)Pablk d illy IOc,Illn 10)Cold storage%ominous.without sire halation 30)Pump sates and novice II)Cafnna01ol 880,001,ROARIng Ir00e 000001 31)800,09 canlfaatat tNdlnei R1.adeei 12)Co1BOAnding sL cmmelbs and 180.lrles 32)Sash and door manufacturing 13)Electronic components menuloctuHng one assembly 33)Sheet metal shop 14)Elm blowing 34)Sign manufacturing 15)/cc moan,manvfactuting 35)Spray pninlag shop 16)Insulation amp/Mallon business 38)Store Beloit manufacturing and sales 17)rrflgouan.(4.3 and,trdcn,h cru6ng pumps nod 37)Waehouses equIPrn.nl 38)Wdaing equipment and supplies IB)Janllaiol or clerning services 39)Commurnly tacitly Uses-Gly hot,yaks And 19)Laboratory,chemical arsapls,general analysts. Ore.1.111ns and ether municipal Usei physieof Testing 40)Health and physkel nln..•eanlert and 20)Linen and towel..Oce gym^.run,not to exceed 16.000 square feet UE1.EL0PMCNT REGULATIONS: IMS PROPERTY SNAIL RE SUBJECT 10 TME DEVELCPIIENT REGULATIONS OF 114E 11-1'LIGHT INDUSTRIAL DISTRICT.SECTION 26 DE 2014410 ORDINANCE NO.480.AS AMENDED, AND ALL OTHER APPLICABLE REGIAATI0NS OF ZONING ORDINANCE NO 400,AS AMENDED,PATH DE FO LOYANG EXCEPTIONS: I.LANDSCAPE AREAS ADJACENT 70 THE COMMON PROPERTY LINES THAT ARE PROVIDED IN UU OF TME INTERNAL BUFFEAYARO ARE SUBJECT TO 111E LANDSCAPE ADMINISTRATORS APPROVAL 2.NAARIULI IMPERVIOUS COVERAGE LIMITED 10 A MAXIMUM 6 750 TOR LOT I,6I.2X FOR LOT 2,BOL FOR LOTS 3,4 AND 5.MAXWUI0 IMPERVIOUS COVERAGE.FOR TOTAL 501E NOT TO EXCEED 7510 3.NUMBER OF PARKING SPACES REQUIRED/PROVIDED MAY BE ADJUSTED 0/-1010 PROVIDED THAT IN NO CASE SHALL MAXIMUM SHE INPERNCUS COVERAGE EXCEED 7531 4.ALL BUILDING FOOTPRINTS/SQUARE FOOTAGES SHALL BE RESTRICTED TO 0/-1010 OF FOOTPRINTS/SQUARE F001ACES 910000. S THE F-1 DUFFERYARO BEINEEN LOT 4 AND ADJACENT C-3 COMMERCIAL PROPERTY SHALL NOT BE REWIRED.Ti FAVOR OF TEE EXISTING NATURAL DRAINAGE EASEMENT LOCATE°BETWEEN LOT 4 AND COM1AERCTAL PROPERTY TO THE NORTH WIIICII SIVLL RELEARN IN A NATURAL STATE 8.ALL LOTS(1-5)SHALL BE RELIEVED FROM RESIDENTIAL ADJACENCY RECUIREMEI'ITS DUE TO LOCATION OF ALL PROPERTY 0011011 400'TRW THIS DEVELOPMENT PATHI 75 LON NOISE CONTOUR ESIAA(IS1FO AY AIRPORT COMPATIBILITY LAND USE ZONING ORDNANCE y 470.WHICH PROVIDES MAT ALL RESIDENTIAL USE 011HIN IBS CONTOUR IS PROE181TE0. 7 THE PERMITTED USES FOR LOT 5R BLOCK 51SHOWN AS LOT 3 ON THE CONCEPT PLAN)WILL BE AS FOLLOWS ANY USES PERMITTED IN TIE O-1 OFFICE DISTRICT.LABORATORY,CHEMICAL ANALYSIS,GENERAL ANALYSIS.PHYSICAL TESTINO.MEALTIME)PHYSICAL FITNESS CENTERS AND GYMNASIUMS,NOT TO EXCEED 16,000 SQUARE FEET;COMMERCIAL SCHOOL INCLUDING TRADE SCHOOL COMMUNITY FACILITY USES-CITY HALL,POLICE AND FIRE STATIONS AND OTHER MUNICIPAL USES;MANUFACTURING OF MEDICAL AND DENTAL EQUIPMENT,PUBLIC UTILITY FACILITIES Case No. Attachment E ZA17-044 Page 5 • S-P-2 Zoning Letter and Regulations for Lot 5R with Ord. No. 480-439a approved January 18, 2011 (ZA10-065) HGAHart, Gaugler& Associates, Inc. Civil&Structural Engineering A O January 18,2011 Mr.Dennis Killough City of Southlake Department of Planning 1400 Main Street,Suite 310 Southlake,TX 76092 Re: Texas Digestive Disease Consultants-Medical Office Building HGA Project Number 210127 Dear Dennis: Texas Digestive Disease Consultants(TDDC)desires to build a new Medical Office Building on Lot 5R Block 5 of the Cornerstone Business Park located on Nolen Drive south of Silicon Drive in Southlake,Texas. The new Medical Office Building will be approximately 16,790 square feet. The property is currently zoned"S-P-2 with I-1 uses"as shown on the Concept Plan dated December 13, 2004 and the property has an Industrial Land Use Designation. Medical Office use is allowed in the 1-1 base zoning but the Concept Plan for the lot in question listed 32,000 square feet for the allowable building size and listed 51 parking spaces on the plan. In the Development Regulations listed on the plan,the number of parking spaces may be adjusted+/-10%and the building footprints/square footages are restricted to+/-10%of the footprints/square footages shown. Our present Concept Plan and Site Plan include a building that is 48%smaller than that shown on the previous Concept Plan. Because of our office use we are proposing to provide 111 parking spaces. The maximum impervious coverage per the Concept Plan is 80%. Our present Concept Plan and Site Plan include 56.76%of impervious coverage. In order to develop the property in a manner that is suitable to the needs of the Medical Office Building,the property will need to be rezoned. Our request is to revise the current zoning and Concept Plan to allow for the square footage and parking to meet the needs of our development. The S-P-2 regulations will remain the same except for the following: • Twelve covered parking spaces will be allowed in the area indicated on the site plan and as shown on the elevation and rendering. • The permitted uses for Lot 5R Block 5(shown as Lot 3 on the Concept Plan)will be as follows: 1. Any uses permitted in the 0-1 Office District 2. Laboratory,chemical analysis,general analysis,physical testing 3. Health and physical fitness centers and gymnasiums,not to exceed 16,000 square feet 4. Commercial school,including trade school 5. Community Facility Uses-City hall,police and fire stations and other municipal uses 6. Manufacturing of medical and dental equipment 7. Public utility facilities Variance requests will include the following: • Driveway Stacking: The required internal storage,based on the average number of parking spaces per driveway(85.5)and based on the total number of parking spaces(342)is 100'. The minimum storage length shall be thirty-three(33)feet. 12801 N.Central Expressway• Suite 1400• Dallas.TX 75243 • Voice 972-239-5111 • Fax 972-239-5055 Case No. Attachment E ZA17-044 Page 6 I I HGAHart, Gaugler&Associates, Inc. Civil&Structural Engineering 0 Thank you for your assistance on this project. Please contact me with any questions or comments you may have. Sincerely, Hart,Gaugler&Associates,Inc. John D.Blacker,P.E. Principal F:12010L101271CiviItSubnirat2201 I-01-18 city council rnectingl20I 1.01-18-LTR-coning naraive-TDOC.Joc 12801 N.Central Expressway • Suite 1400• Dallas,TX 75243 • Voice 972-239-5111 • Fax 972-239-5055 • Case No. Attachment E ZA17-044 Page 7 P&Z and City Council motions for Lot 5R (shown as Lot 3 on the Concept Plan) S-P-2 zoning approved with Ordinance 480-439a on January 18, 2011 (ZA10-065): P&Z Action: December 9, 2010; Approved (4-0), subject to the staff report dated December 9, 2010, granting the variance to driveway stacking depth, noting the applicant's willingness to modify the storm drain routing on the northern portion of the lot in an attempt to save trees 455, 441, 442 and 443, noting the applicant's willingness to modify the driveway routing in an attempt to save tree 424, and on that same drive, any grade changes that could be done to save that tree would be appreciated, and also noting the applicant's willingness to look into changing the covered parking structures to match the canopies that are used on the building. Council Action: January 4, 2011; Approved 1st reading on consent (7-0), with the comments made by Council during work session,which include contacting the lender to inquire about removing the industrial uses, providing landscaping all around the base of the building, addressing the landscape administrator's comments a-e, providing lighting according to the City's ordinances and revising the covered parking structure to match the canopies on the building. January 18, 2011; Approved 2nd reading (5-0), granting the requested variance to driveway stacking, subject to P&Z's recommendations, subject to the applicant's presentation, subject to the revised S-P-2 letter dated January 18, 2011 limiting permitted uses and allowing covered parking over twelve spaces, and subject to Site Plan Review Summary No. 3, dated December 17, 2010: 1. The metal halide lighting shown on the Site Plan — Photometric does not meet the requirements of Lighting Ord. No. 693 B, requiring that luminaires on poles over 42" in height and exterior mounted light fixtures shall be high pressure sodium or other lights giving a similar soft lighting effect. All lighting must comply with the Lighting Ordinance No. 693, as amended with regard to type of lighting, intensity, glare and spill-over. 2. Provide the agreement for the off-site private drainage facilities. S-P-2 Zoning Letter and Regulations for Ordinance No. 480-439b approved October 18, 2011(ZA11-027): All previously approved uses and regulations described in the S-P-2 letter dated January 18, 2011 (above) are unchanged. P&Z and City Council motions for S-P-2 zoning approved with Ord. 480- 439b on October 26, 2011 (ZA11-027): P&Z Action: September 8, 2011; Approved (6-0) subject to Staff Review Summary No. 2, dated September 2, 2011; also requesting the owner of Lot 1 to clarify language in their submitted letter of support regarding the term "replat." Council Action: October 4, 2011; Approved on consent (7-0) at 1st reading as presented. Case No. Attachment E ZA17-044 Page 8 October 18, 2011; Approved at 2nd reading (7-0) subject to Revised Concept/Site Plan Review Summary No. 3. dated October 4, 2011: 1. To add the two parking spaces along S. Nolen, please reduce the parking islands besides the one with the large Oak tree and leave the island with the oak tree undisturbed. (Shown on attached Site/Concept Plan submitted November 16, 2011). 2. Provide fire lanes in compliance with the City Fire Code. The minimum inside curve radius is 30' and outside radius is 54'. 3. An encroachment agreement processed through Public Works may be required for any structure constructed in the Drainage Easement. 4. Please provide a Drainage Easement by separate instrument to incorporate the portion of the existing drainage channel that is not included in the Drainage Easements recorded in Vol. 17100, pg. 97 and Vol. 17100 pg. 100, Deed Records, Tarrant County, Texas. Case No. Attachment E ZA17-044 Page 9 S-P-2 Zoning Regulations for Lot 4R with Ord. No. 480-439C approved September 6,• 2016 (ZA16-044) CORNERSTONE BUSINESS PARK USE AND DEVELOPMENT REGULATIONS FOR"S-P-2"ZONING PERMITTED USES:Lots 2 and 4(Current Lot Designations:Lots 2R1R and 3R) EXCLUDED USES: 1) Sexually-oriented businesses 2) Blacksmithing or horse shoeing 3) Candle manufacturing 4) Creamery and dairy product processing 5) Egg storage,candling,sorting and grading 6) Farrier(horseshoeing) 7) Feed stores 8) Ice manufacturing and bulk ice storage 9) Mini-warehouses PERMITTED USES: 21) Machine shop 22) Mattress manufacturing or mattress 1) Any use permitted in the 0-1 Office District renovation 2) Aluminum product fabrication 23) Manufacturing at medical or dental 3) Armature winding equipment 4) Bakery,wholesale 24) Monument manufacture 5) Broom manufacturing 25) Ornamental iron works 6) Cabinet or carpentry shop 7) Candy plant or production facility 26) Pest control businesses 27) Plastic fabrication 8) Carpet cleaning operations 9) Clothing manufacturing 28) Plumbing,healing, refrigeration or air conditioning shop 10) Cold storage warehouse without size 29) Public utility facilities limitation 30) Pump sales and service 11) Commercial school,including trade school 31) Roofing contractor business premises 12) Compounding of cosmetics and toiletries 13) Electric components manufacturing and 32) Sash and door manufacturing 33) Sheet metal shop assembly 34) Sign manufacturing 14) Glass blowing 35) Spray painting shop 15) Ice cream manufacturing 36)Store fixture manufacturing and sales 16) Insulation application business 37)Warehouses 17) Irrigation sales and services,including pumps 38) Welding equipment and supplies and equipment 39) Community Facility Uses—City hall,police and 18)Janitorial or cleaning services fire stations and other municipal uses 19) Laboratory,chemical analysis,general 40) Health and physical fitness centers and analysis,physical testing gymnasiums,not to exceed 16,000 square 20) Linen and towel service feet. Case No. Attachment E ZA17-044 Page 10 CORNERSTONE BUSINESS PARK USE AND DEVELOPMENT REGULATIONS FOR"S-P-2"ZONING PERMITTED USES: Lot 3(Current Lot Designation: Lot 5R1) The permitted uses for Lot 5R, Block 5(shown as Lot 3 on the Concept Plan)will be as follows: any uses permitted in the 0-1 Office District; laboratory,chemical analysis,general analysis, physical testing; health and physical fitness centers and gymnasiums, not to exceed 16,000 square feet; commercial school, including trade school;community facility uses; city hall, police and fire stations and other municipal uses; manufacturing of medical and dental equipment; public utility facilities. PERMITTED USES: Lot 5(Current Lot Designation:Lot 4R) Any use permitted in the 0-1 Office District and to also include ambulatory surgery center as a permitted use. DEVELOPMENT REGULATIONS: This property shall be subject to the development regulations of the"I-1" Light Industrial District, Section 26 of Zoning Ordinance No.480,as amended, and all other applicable regulations of Zoning Ordinance No.480,as amended,with the following exceptions: 1. Landscape areas adjacent to common property lines that are provided in lieu of the internal bufferyard are subject to the landscape administrator's approval. 2. Maximum impervious coverage limited to a maximum of 81.2%for Lot 2,80%for Lots 3,4 and 5. Maximum impervious coverage for total site not to exceed 75%. 3. Number of parking spaces required/provided may be adjusted+/-10%provided that in no case shall maximum site impervious coverage exceed 75%. 4. The required parking for Lot 4R, Block 5 will be 9.6 spaces per procedure room at 5 rooms. 5. The loading space requirement for Lot 4R, Block 5 shall be one 10 foot by 35 foot space. 6. All building footprints/square footages shall be restricted to+/-10%of footprints/square footages shown. 7. The F-1 bufferyard between Lot 4(now Lot 3R)and adjacent C-3 commercial property shall not be required, in factor of the existing natural drainage easement located between Lot 4(now Lot 3R) and commercial property to the north which shall remain in a natural state. 8. The tree preservation coverage for Lot 4R, Block 5 is as proposed. 55%of the existing tree cover shall be removed and 45%of the tree cover shall remain. 9. All lots(2-5)shall be relieved from residential adjacency requirements due to the location of all property within with in 400'from this development within 75 LDN noise contour established by airport compatibility land use Zoning Ordinance#479,which provides that all residential use within this contour is prohibited. City Council motion for S-P-2 zoning approved with Ord. 480-439C on September 6, 2016 (ZA16-044): September 6, 2016; Approved at 2nd reading subject to Staff Report dated August 30, 2016 and Concept/Site Plan Review Summary No. 3 dated July 28, 2016 and noting: • Accepting the revised Corner Stone Business Park revised SP-2 regulations and noting the following changes for Lot 5 (aka Lot 4R, Block 5): Case No. Attachment E ZA17-044 Page 11 • Allowing the uses permitted in the 0-1 office district to also include ambulatory surgery center as a permitted use; • Revising regulation #4 to state that the required parking for lot 4R, Block 5 will be 9.6 spaces per procedure room at 5 rooms not to exceed 48 spaces in total (the included S-P-2 regulations have been revised to reflect this change) ; • Accepting regulation #5 as it relates to the loading space requirement of one loading space at 10' x 35'; • Accepting regulation #8 accepting the tree preservation plan as presented; and, • Finally accepting the revised landscape/site plan presented this evening showing a reduction in parking from 50 spaces to 48 spaces and noting additional planting of one Live Oak and 65 Mexican Feathergrass plants. Concept/Site Plan Review Summary No. 3 dated July 28, 2016 Planning Review 2. Please make the following changes to the Concept Plan: a. Revise the note stating that "All building footprints/square footages shall be restricted to ± 10% of footprints shown on the original Concept Plan approved as Case No. ZA04- 021 except as approved by City Council." 3. Please make the following changes to the Site Plan: a. Revise the note stating that "All building footprints/square footages shall be restricted to ± 10% of footprints shown on the original Concept Plan approved as Case No. ZA04- 021 except as approved by City Council." b. A 10' x 50' loading space is required on Lot 4R. The applicant has added an S-P-2 regulation to allow the loading space to be 10' x 35'. c. Staff recommends providing a minimum height of 8' for the trash receptacle enclosure to ensure that the dumpster is completely screened from view. 4. On the elevations in the fagade material breakdown, please change "matrail" to "material". Tree Conservation/Landscape Review LANDSCAPE COMMENTS: 1. Required Parking lot island trees and associated landscaping do count toward interior landscape requirements. There are enough existing trees to provide credits for the required interior landscaping and bufferyard canopy and accent tree plantings. 2. The landscape area at the southeast end of the south parking is required to contain shrubs, ground cover, ornamental grasses, seasonal color, or a combination of these plant materials along Case No. Attachment E ZA17-044 Page 12 with the required canopy tree. 3. Existing tree credits are proposed to be taken for required interior and bufferyards landscaping. Ensure that all trees proposed to take credits for are in healthy condition and will be saved during construction. Existing tree credits shall only be granted if the tree/s are in healthy condition and all requirements of the Tree Preservation Ordinance have been met as determined at the time of inspection for a Permanent Certificate of Occupancy. Public Works/Engineering Review WATER AND SEWER COMMENTS: 1. Clearly label all public and private water and sewer lines. 2. 6" sanitary sewers require manholes at each end. DRAINAGE COMMENTS: 1. Differences between pre- and post- development runoff shall be captured in detention pond. Proposed detention ponds shall control the discharge of the 2, 10 and 100- year storm events. Detention may be required with any new proposed building construction. 2. Documentation supporting and certifying that detention is not necessary will be required prior to approval of civil construction plans. 3. Clearly label all private and public storm lines. 4. Civil construction plans must include capacity calculations for existing inlets downstream of the site. 5. Storm drain may require extension to northeast. Fire Department Review GENERAL COMMENTS: The required backflow protection (double check valve)for the sprinkler system can be located on the riser if the riser is within 100 feet of the water main. If the riser is further than 100 feet from the main, the double check valve shall be in a pit. Riser rooms shall be a minimum of 5'X5' if the double check is not located on the riser, or a minimum of 6'X6' if it is on the riser. (FDC shown on plans, but riser room location is not indicted) The Fire Department Connection for the sprinkler system must be within 100 feet of a fire hydrant, and within 50 feet of fire lane access. (A remote FDC is acceptable to meet the requirement)(FDC location not shown to be within 50 feet of a fire lane on the property) FIRE LANE COMMENTS: Fire lanes require a minimum 30 foot inside turn radius and a minimum 54 foot outside turn radius. (Per 2015 I.F.C. Sec. 503.2.4). Case No. Attachment E ZA17-044 Page 13 Fire apparatus access needs to be provided within 250 feet of all exterior.portions of the perimeter of buildings on a "hose-lay" basis for sprinkled buildings. Fire apparatus access needs to be an all-weather surface, asphalt or concrete, a minimum of 24 feet wide with 6 inch red striping that contains 4 inch white lettering that states "FIRE LANE NO PARKING" every 25 feet, and able to support the imposed loads of fire apparatus. (A minimum of 85,000 pounds GVW). Fire lanes can enter the property and dead-end no further than 150 feet into the property, or an approved turn-around for fire apparatus must be provided. (Provide 150 foot dead end fire lane to meet hose lay distance requirements on property if necessary) City Council motion for S-P-2 zoning with Ord. 480-439D (ZA17-044): 1. SECTION 2. That the City Manager is hereby directed to correct the Official Zoning map of the City of Southlake, Texas, to reflect the herein changes in zoning. SECTION 3. That in all other respects the use of the tract or tracts of land herein above described shall be subject to all the applicable regulations contained in said Zoning Ordinance and all other applicable and pertinent ordinances for the City of Southlake, Texas. All existing sections, subsections, paragraphs, sentences, words, phrases and definitions of said Zoning Ordinance are not amended hereby, but remain intact and are hereby ratified, verified, and affirmed. SECTION 4. That the zoning regulations and districts as herein established have been made in accordance with the comprehensive plan for the purpose of promoting the health, safety, morals and the general welfare of the community. They have been designed, with respect to both present conditions and the conditions reasonably anticipated to exist in the foreseeable future; to lessen congestion in the streets; to provide adequate light and air; to prevent over-crowding of land; to avoid undue concentration of population; and to facilitate the adequate provision of transportation, water, sewerage, drainage and surface water, parks and other commercial needs Case No. Attachment E ZA17-044 Page 14 and development of the community. They have been made after a full and complete hearing with reasonable consideration among other things of the character of the district and its peculiar suitability for the particular uses and with a view of conserving the value of buildings and encouraging the most appropriate use of land throughout the community. SECTION 5. That this ordinance shall be cumulative of all other ordinances of the City of Southlake, Texas, affecting zoning and shall not repeal any of the provisions of said ordinances except in those instances where provisions of those ordinances are in direct conflict with the provisions of this ordinance. SECTION 6. That the terms and provisions of this ordinance shall be deemed to be severable and that if the validity of the zoning affecting any portion of the tract or tracts of land described herein shall be declared to be invalid, the same shall not affect the validity of the zoning of the balance of said tract or tracts of land described herein. SECTION 7. Any person, firm or corporation who violates, disobeys, omits, neglects or refuses to comply with or who resists the enforcement of any of the provisions of this ordinance shall be fined not more than Two Thousand Dollars ($2,000.00) for each offense. Each day that a violation is permitted to exist shall constitute a separate offense. SECTION 8. All rights and remedies of the City of Southlake are expressly saved as to any and all violations of the provisions of Ordinance No. 480, as amended, or any other ordinances affecting zoning which have accrued at the time of the effective date of this ordinance; and, as to such accrued violations and all pending litigation, both civil and criminal, whether pending in court or Case No. Attachment E ZA17-044 Page 15 not, under such ordinances, same shall not be affected by this ordinance but may be prosecuted until final disposition by the courts. SECTION 9. The City Secretary of the City of Southlake is hereby directed to publish the proposed ordinance in its entirety on the City website together with a notice setting out the time and place for a public hearing thereon at least ten (10) days before the second reading of this ordinance, and it this ordinance provides for the imposition of any penalty, fine or forfeiture for any violation of any of its provisions, then the City Secretary shall additionally publish this ordinance in the official City newspaper one time within ten (10) days after passage of this ordinance, as required by Section 3.13 of the Charter of the City of Southlake. SECTION 10. This ordinance shall be in full force and effect from and after its passage and publication as required by law, and it is so ordained. PASSED AND APPROVED on the 1St reading the 20th day of June, 2017. MAYOR ATTEST: CITY SECRETARY Case No. Attachment E ZA17-044 Page 16 PASSED AND APPROVED on the 2nd reading the day of , 2017. MAYOR ATTEST: CITY SECRETARY APPROVED AS TO FORM AND LEGALITY: CITY ATTORNEY DATE: ADOPTED: EFFECTIVE: Case No. Attachment E ZA17-044 Page 17 EXHIBIT "A" • Being described as Lot 4R, Block 5, Cornerstone Business Park, an addition to the City of Southlake, Tarrant County, Texas, according to the plat filed in Cabinet A, Slide 9866, Plat Records, Tarrant County, Texas and being approximately 1.558 acres. Case No. Attachment E ZA17-044 Page 18 EXHIBIT "B" ORIGINAL CONCEPT PLAN (ZA04-021) APPROVED JUNE 15, 2004 ORDINANCE NO. 480-439) y 1 e 9 iii is : i e g s 3 yr I1 @ E 1 E _ Y' 11 1i{ I =I! {1711,1 1 . 1 ! :i ! ii ia 'iiI I• 1 'ii1s s€F y, g si4 Qi F�6�o iwr. d l 4 € 4 i t I 3, i 9! . d�<m¢ —meg i= !- i ! ' i i'° ! 3 6.d6 !![3333 fI I ':oe .A-1azg Lill i / is' ! j 9,. 1 1,119 5Ii ili : :: i _3 p4-'E^t7F0€$ -i�� 1 g � �i �' � �'sv 6¢1!-' 3 :; ill < 11 353 litil -pa.Z: a; dh1i4ilIh1 i'i : !i._1![ �s'I III ' I i I�.. 4 . 0, ¢ SER Y . i ,. €a! b I!: e. 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NO. 480-439A) I + ' 1 If ttI i1e ! { 1 .r. .�e!!!!!3tt Iles '11111ill' + 11 b ; II g #1 X11 11{Di ,(1T{it1, I : 11 I �+ i g==11 i Pi 1 ii 11 in 11 mum fhhit111!{ij * Ii .-' h k l, 11 : 1 1 1 1 1 -ffia si 0- mm�rrirrrrsrrtrl t t a i� i- ii lli -4 e I 1 ,1+ ( j 11 a .-fit' hill!! fill 1 ;:„ -Ao it { 1 1{j!�{•�-j'1 il X11�1 t ; °11 i ii !t � .11 a i ri I l l i i w8 1 111 —.:..lit.h e [1 b i1 t :It SII -i 11!! ! 1 , t r t t "o vg Allo + ; 1{ ! °il f 1 ill! i.L-41 ! Ili! ! I 1 1 1 ! i s j iiiiif' ; ° ! i Mi�4i;i h �I 1 lgliog St 11 .in,ll 1IfFtiI' IIb ttkJ ! -!! Qi ilb;i !!!Ilii Igo 1 VI as q don! 11110 s� I I !' ' lilg CIASK ZAMA= .1111K LOMAX <' -4 -tor,.1--,; ----— \ s ' :� igin.P !tl , ,Ili / * / -,/,`':', '' ' " Ili T ..")-?'":-.Z ,iiiiii ‘,.,..5„ iv . ,/ ,/ . ., 14 ' `' z - x' , , _ li I 'I 2 i /- $ , A; ..4 .../ s,, ,1; !. / • ilii .., : -.... , ,. >,f 1 1.-..0 I J pp, • ----lo 116, \V' •\---,-,-,.. ,...-e% ,,, ii i i,- .11:12 r....,7. lk*::,,,,,...,,:•-_,, -,....,.....,,, ".,.".„,_.,:r ,".;"-I et t E v",/,,i\-..‘. ---,........-. /0,-- ,..4,-/-=' 1 1 �!. I ..��'411® .;,`� '''.17,-,'• / >:.: \ 1111 I!i 11 \ 111{11°�t9.� °{i�1, A . t aatl ghi ��, ',, z \ a tv G\\ _ ILI 4 g • ..... ig 1 thaikii 41 ' I F� / ../. il tilfill Y Case No. Attachment E ZA17-044 Page 20 SITE PLAN (ZA10-065) SUBMITTED DECEMBER 17, 2010 (ORD. NO. 480-439A) . IIAR IIINIIIIII I .,a 111E Fill ___v.„.1-2=:.— ” .... -- =ss= SILICON w ,.r- rm.�ms —_ _ DRIVE �_. . .°o:a i„ :'i -� — IqR-GI-Mh 701__ me d ILII 1 1111 11111111'1 I ` r ) rib— III ilhSI ILEI 1 pI �Q e Ap iii Ci gg i d. 11 111111 ` it s _,. it;1g.1 1 . ., x:1=;I1 I; ' ' ; � if! 1:y lc I s i fy V1 . 9I �� ��� i li jtoi _ r h' / ,, t 1 nY vq ,_ L , , /• < i � tib''.. I •r 1 t eta HFll / 'ir6saa ",11;11 //it 6 1.' 11.:..1 tAls sQ1 ; Ii;i;11 -i :::::h - -a li 3 e -.'-"3 !Y L 93 _ eea5 3ke�� a I e p;p . .. is � � S [ 8 8 I S s. �{y 1 g. Y::g a [IIs c l 3 11 9 tta ;;iso' gt,. .1 T:11 I i � E111� 11,11111 �iil.. 'i 110 /yr ; ,1 hili 1 111 1 ' ; �' - 1 1 I I + Ii 1 lA III I III ' �t 4 - ' J{ L Ni§1,„111„ a // s x ,s7-, ii -_rte.._ l _ Y + / TEXAS DIGESTIVE DISEASE .-g,......,..„ .-.., Hatt.Geugkr (II pil■ CONSULTANTS ti.',.--'1" ,A Lo Iea,�. — _ srre rUw LOTSa MAC 1 1 ' HGA lit cosuce onE etzgyr S4 rAnx ADIX... i — 1IIOYAa EA151:avinc.�xrcnvm n_.ns �� ����., A O m+o'm"''. .— Case No. Attachment E ZA17-044 Page 21 TREE CONSERVATION PLAN (ZA10-065) SUBMITTED DECEMBER 17, 2010 (ORD. NO. 480-439A) -- •MOT fASIVGA. 0235029111 . ...........1,-.......,_......raqi.:411r...........— ''"-- - ..'''Cr .... 'CO\ 6, --. 0 H \:;. 1 /0 Q ", `...! %--. . , ..,t, \-- ---- il ,t > -- PT , —1 1 \ op . 0 . ...., 12,2 : Ati `t1 fg 4 , 1 4 ;L:', i -;:t ® ,,,, : x ijr:it c'te. 4-45r . -- -, 12A! r IL 4* b... . h c 64, 9 ! i It, ili$tiq 1: i l'.. I :II • / --.1..'-",- \-..,,,_. . i , 7, , / , , ...11, ,.. j 4 I -....- iir i , 1 . / '?"-•CC , i i / i i ii .11 1 / i .1 ild2 1 / , '4,00,.. --.,,., / --1' 114 14 si. .1 4 .. '.' ''' ....17 Lih ......i ... :e....," 0.4)- i4' • fl'4'.5P i‘r K st' \\1,4 T,NV- ,1 Illb , IMAIIIIIIIIIIMIIIIIIIIMilaiiiiIIIII164614131%1114L3111111111:14 i; ., ..--",a,,aiki.' , 0 fe ;IP '1:ilr:, 1 t • 51 t.g ii-, 1 1•-1 ir 1 ....Itt;‘:, .:1:.,!1;,.. L'1,141441t 11110. 444 .%41.441.11144111,141 , _..., , / - g. Is to i I I ;14;".......1,4q.....e1.11 ,,,Net.......,11 y44114401 u :q! low p :41' MN i I 1 1.1.111,01.1111111/111411 Jilt iMlif minitittintimi 1';''''' I''';'' i iiiligli VII fx 41- : C 9 • •• '..1 ' ir- — 3.. g.... a... ••••• ... ....., i • ITIDIE)0 ot.7. ! T.In A 1°14m.A°°°°11.061°10. PI IR g ° •-.... ,."-':.°• ....N.J.,. CONSERVATION Tax Diotive Disease Ccesultnis PLAN cti-y oF,oL-riitKL - 0 UM ti.Cowel•ann 1 Ma SOHO • ' aS 21.12•1141:••1.13•4•11•Ir re ......... TARRANT COUNTY 11'X .S ,.. -' Case No. Attachment E ZA17-044 Page 22 LANDSCAPE PLAN (ZA10-065) SUBMITTED JANUARY 10, 2011 (ORD. NO. 480-439A) ilAgglieW„Hill II% ii 411 111 m.o a I i.111Fil III 9111 I I 1 = / 31 $ §i 111I1'as 1 1 i s ,.$. a 1 1 i m1la • o ' : a i }'a o•.n 7 ----' 0 'L�L ^�,O 1, . A 0 sarimmai .._ . .1 , • ,_..,. hL[LLi 5 4------- 1I 1111110 to dirk I v q. ap PGG A J ',A Ef; I�`- y1 IIIIIIIIII] I: _= : " �; s ftHlIILi X \ \l 1 y I a i ` ° . z N. I gf l. #d d / .,o I JI ;i9, :it o- F� ,— wit II! 1- JI I§ a^' g — E°; 550;F> __ Mr��� Han,Gaugler a ■ .. LANDSCAPE HGA &` "iams,Inc. — PLAN Texas Digestive Disease Consultants "�• i " A "" "•'"••", -_ CI Of SOVTHIAKL. .y�> .,x._w.i��inz:»w.rr..i " � 0 ^.,•. ... TARRANTCOUNry,TC%AS ....n�.m.�,...,w.�..."� Case No. Attachment E ZA17-044 Page 23 ELEVATIONS (ZA10-065) SUBMITTED JANUARY 10, 2011 (ORD. NO. 480-439A) Ili 1 11 10 1 -0 O � �( �111 ` i71 lI %. ° 71;1' O li71 1 _ 1 ' ill Pi ice. o !li 1 p I A11 E - � ? o I 111814 — o 1111 I' .1.�=tea dl Ininallal■ AI — ' ,,;, • ° . I . 1 I - . � -- � � PM o dl .01, ir., $ 1 31 1 7 $11 II 1 i f9 1111 I 11 111 f . f v711 1 :11 11 i Irani:o ipw '11 1 I (111 I g I ` , t.t: I i, ' O IP 1! ILi €i !E Fitt — f00, , II,111!Pill!i1 811 e I 01i1 o c —p l4;j ! N • 11 1 ' 3 illiMifinoi "s': _® _ IR.i.: ® ! — I 111 illiit Ali�/ s #1 1 #3 . •.:j V _ Ill is L k i it Iiii` 111 I kidiel TM7 1 it I L! Texas DSC Cosdtants talttlAtj Tmsnogt Case No. Attachment E ZA17-044 Page 24 RENDERING (ZA10-065) WITH REVISED COVERED PARKING SUBMITTED JANUARY 10, 2011 (ORD. NO. 480-439A) I }.. - i iladllios 1 RENDERINGS ZA10-065) SUBMITTED NOVEMBER 22, 2010 (ORD. NO. 480-439A) I A.4 - � T_ 1 "1 ' 0.12 i04`^1 2O.W ME NORTHEAST 02m o',THE SOVIMS151 8 gZ i , h I I 9 I03`I N JHE TRO"[ENTRY 01 E50FI THE E.OEITMYEST .- wzlt: Case No. Attachment E ZA17-044 Page 25 CONCEPT/SITE PLAN (ZA11-027)APPROVED OCTOBER 18, 2011 (ORD. NO. 480-439B) i. 1 i-i \.. II- i i "14k E . i! f.'•• - _ '\ i I I f!i --Zit. -leg' re I I! n ii:,..; 3; •.•.` ,/ \ ".. ..It_ G•'d'•tl 1 I i —• ,� .a. a Ii • 4♦..w•. ,.. i i r.-.;: \ . 4/ ; I iLl \\*;')•\ .."..?"- ; •-'4'..:;--:•,.•- ‘s,\-.... ' ; • f zs''_'y,zi.1 •iFg ht' ♦. \\ i i //:!r_.?Y!.- \<,-;,• \ /i• a. ,'z'- gdt_pe_ i• 'plr'-g� iI I 4='.i'Ai; NI; \�.I \ i !r.If�!'/ 'jl` `�^,S/1-.,, `\. a1 'tg II _ I • =P$FL 1 II j 9 ;i oil 1 \",\, .4..-c.;::7-,,,„-_,„<. \ ,i`. .,'i11 -I I i i i=, in g ^n `\�\ \, fc,k•t•i.,. �•� \r-h. \ ' } a j I. i .F . ♦ il / ;(1.47).' 37". ti c \ '``��� \. 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IElii ill,*isl i := i r p ' i(Iii'iii's r1 j Sc-s"+ -,= N ! II �i,';.1 I ri=,citlti;iel"i 1 • i i i _1i#:! MP i dill e i IIsi _ i111 . ii I 1 i ik9! i I ill $ i = °l9. i ?,s! i 13 i , of isi i ,....,IE 7.1 I e• ! Y n A i _ i ti i I i I III i1ii51I11,. c`I I :, i if Case No. Attachment E ZA17-044 Page 26 CONCEPT PLAN (ZA16-044) APPROVED SEPTEMBER 6, 2016 . (ORD. NO. 480-439C) ter.,"°"",oERUM. �':.rV• ;x\\ ,�r„..rx�EFEEo,F�.EE.n.. I I I I I I 5 SCE WNW LIES SIOLL BE IS .MD REAR 0101114 10 w.If1,-..-4 ..,�FIRE 0EE.E...xa2.T..e .w .w.xma a :6w ---us a \ - ( ITE 04E1L iFOOT AGES.V.N. ii"- ----� \. r i • MAP ,\ \\___2-1... ..s--14:1,// /f"^r s �\• I' C:: 7yEc�u ..rem. I 1 RC/N!}'t \ \ /4/": /7,,,'-',. \\ 2-'''''''' 1 Fr-1.7.1.' '': Sri •..\sk\.\\:.\\ '6 )C^j \/\ fir \ ♦ A a.�lr"... • 7� ,� :\ .- , �\\i>,-. . .j ' �..\ , � •7.-,.14,' �� ,� .�`N :' A... i , \„. , ..,„ 7,.... • .,- ,,,;,-._ ..,,,,,, ' .- .1--- off, �, :114 617: ��. . / \ \ ♦ tee., '5.F.:1::\\\* 1 ms.�.exs.. �, ��� -• - \�"+ ' \\ CASE No. ZA16-044 °"„�` ' �m� \' a \I o eo iGo iso CONCEPT 917E EXHIBIT - - Nrrar.R.*� iNN�^at- '2.'4." Q.\ a ',1' ...-,,,,,d=axx.a LOTS 2R1R,3R,4R 8 5R1 BLOCK 5 .,.�.uxn �. m.. ..m .xxam.�., ,� t`,r; JI 1 -:e.,. '` CORNERSTONE BUSWESS PARK NN[m�N rememiNNNTFR• '- �n I''''''.. _ _ •\ meow*..M.,F ,o�o amE.�rte.. �xry RE pw.vuu ...... . \\\ \ .' l� I W1B1 i Atl010.1•1. KIIIRIII.�pLL ,,INC. x \ i 1yi1 maLOT ,- . r.r.mnrn , Li. I'I me,e''-iw'nOM. <m ru w._n�.o normFuruoxs nsr.ra wsr.m s.v.m xv.m n.v.m �� cc e.r.rs.r. I;. 1 -`.fftk- WANK.111?EMI simsr F or 1 rzzwzg. SITE DATA TABULATION • Z04-021 Lot Designation LOT 2 LOT 3 LOT 4 LOTS OVERALL Current Lot Designation Lot 2R1R Lot 5R1 Lot 3R Lot 4R EXISTING ZONING S-P-2 W/I-1 USES S-P-2 W/I-1 USES S-P-2 W/I-1 USES S-P-2 W/I-1 USES S-P-2 W/I-1 USES PROPOSED ZONING S-P-2 W/I-1 USES S-P-2 W/I-1 USES S-P-2 W/I-1 USES S-P-2 W/I-1 USES S-P-2 W/I-1 USES EXISTING LAND USE DESIGNATION OFFICE COMMERCIAL INDUSTRIAL OFFICE COMMERCIAL INDUSTRIAL OFFICE COMMERCIAL& ! INDUSTRIAL TOTAL LOT AREA 118,262 S.F. 118,364 S F 119,923 S.F 67,873 S.F. 424,422 S.F. OFF.=6,000 S.F. WH.= OFF.=13,500 S.F. W.H. M0.9=16,7905.F. OFF. FLOOR AREA BY USE M.O.B.=16,790 S F OFF.=11,000 S.F. =30.200 S.F. W H.= 18,000 5.F. =16,724 S.F 34,724 S.F. PERCENT IMPERVIOUS COVERAGE 80.4% 57.6% 69.5% 63 0% 68.0% IMPERVIOUS COVERAGE AREA 95,083 SF 68,178 SF 83,346 SF 42,730 SF 288,688 SF OPEN SPACE PERCENT 19.6% 42.4% 30.5% 37.0% 32.0% OPEN SPACE AREA 23,179 50,186 36,577 25,143 135,734 BUILDING FOOTPRINT 24,000 S.F. 16,790 S.F. 30,224 S.F. 11,000 S.F 82,014 S.F. INTERIOR LANDSCAPE AREA REQUIRED 8,600 S.F. 4,800 S.F. 4,000 S.F. 1,658 S.F. 19,400 S.F. INTERIOR LANDSCAPE AREA PROVIDED 15,085 S F. 27,504 S.F. 33,353 S.F. 25,521 S.F. 93,007 S.F. REQUIRED PARKING 38 SPACES 111 SPACES(S-P-2) 62 SPACES 48 SPACES(S-P-2) 259 SPACES PROVIDED PARKING 79 SPACES 111 SPACES 58 SPACES 48 SPACES 296 SPACES Case No. Attachment E ZA17-044 Page 27 • SITE PLAN (ZA16-044) APPROVED SEPTEMBER 6, 2016 (ORD. NO. 480-439C) .� \ \ \ LOT 3R BLI'DN s R /I� IOEM ��- \ \ SURFERS PLR E CA21.A.SL.91366 \ \ ZOIED,SP2 GENERALIZED SITE PLAN 11 / / 190008 SITE \ LUD.ixgATRwL ` // NM Rrn°sm _ Atlt•09.°3'E I '/ j I ; A\ _may 1 ><.n• 4 ,1 / LOADING�.¢ 1 I 1 comcxs ___--CAS A,SI.ReS6 \ ArozNatimceA A, c =�C/,\�/ _. 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A t ---�uvr9..,f_9,',1(_99. `er°)- �''f z«gD,n •�^••�' . 0-61 56' ��--rr .4/ 4 LID.LIGHT MM.. • �'INC INK��t AttOtUl7tt, eINC. \ �� I' Sll•�Y'PS'W R ye / 0,21ARLIV670/4 WAS 92 2002 f I 1_ 270 69u y- "FF I 440 cdar EnRgEr. m i e- ,Ew6wM6del.mn Lrzatv"i w.P.M.• ,. / ryrr�.Pz-rr LSH PROPOSED LDNTFG Px(61 J 141-7719 rr.c�rt...rr..� 1-1...d . 59 97'3P'E SHALL REST CIT TAPD OF rut(617)a7-771a �__�..__ / 19 97' SOIRiEale:siAlDAR05 wrc.y.486 ali” l 4x887 I OF I w.e, SITE DATA SUMMARY LOT 4R EXISTING ZONING SP2-GENERALIZED SITE PLAN PROPOSED ZONING SP2-GENERALIZED SITE PLAN LAND USE DESIGNATION INDUSTRIAL GROSS ACREAGE 1.558 AC. NET ACREAGE 1.558 AC. NUMBER OF PROPOSED LOTS 1 PERCENTAGE OF SITE COVERAGE 16.2% AREA OF OPEN SPACE 25,143 S.F. PERCENTAGE OF OPEN SPACE 37% AREA OF IMPERVIOUS COVERAGE 42,277 S.F. PERCENTAGE OF IMPERVIOUS COVERAGE 62% PROPOSED BUILDING AREA 11,000 S.F. NUMBER OF STORIES 1 18'to top of parapet; MAXIMUM BUILDING HEIGHT 24'to top of blade PROPOSED FLOOR AREA 11,000 S.F. REQUIRED PARKING:9.6 SPACES PER PROCEDURE ROOM @ 5 ROOMS 48 PROVIDED PARKING 46 STANDARD 46 HANDICAP 2 TOTAL 48 REQUIRED LOADING SPACES 1 PROVIDED LOADING SPACES 1 AREA OF OUTSIDE STORAGE N/A PERCENTAGE OF OUTSIDE STORAGE N/A Case No. Attachment E ZA17-044 Page 28 RENDERINGS (ZA16-044) APPROVED SEPTEMBER 6, 2016 (ORD. NO. 480-439C) . ,a I w ..r...4Tet, .... ., ,, a xy 0 SITE PERSPECTIVE •drawirc scale A0.1 401 NORTH HOUSTON STREETPROJECT DALLAS. 75202 DR ISE 214.744 8.2000 TDDC ASC - SOUTHLAKE o6 Case No. Attachment E ZA17-044 Page 29 ELEVATIONS (ZA16-044) APPROVED SEPTEMBER 6, 2016 (ORD. NO. 480-439C) B91CA(B-0 STOVE IS a, __STUCCO(ST01 124'4_ S UCCO:SI-U 6 118'-0 CI 188'-0• • IO Ci ■I • SOUTH ELEVATION 1 -NI 40 )1:20 STUCCO SU 4 118•-0 CD87AOLWALL ey=ems `Sgn. 9f.% sr-..sees BQFT 59% 2 NORTH ELEVATION 1:20 .. .. ...STUCCO(01) MUCK WO ........4[@1E esu) 118'-0�SimmLST-J-_ 1'x'0 I -' a METAL DROP OFFCABOPY 113.-04_____ - � 103'-0� 100'-0• a - EAST ELEVATION o WEST ELEVATION 1.20 1:20 METAL DOUBLE GALE ILIZAL CAP FLASH/16G or-0 106'-0 _ -! coNcRETE=saw ma mvuEEML•soen¢NIS 100•-04_ 100,0'4_ METALBOLLUt" O GENERATOR ENCLOSURE DUMPSTER ENCLOSURE 6 I� 1/8• 1/6" O.` '°'" '" `0"STREET PROJECT DALLAS.11X.74820 ���214.748w00 2 .e.e m TDDC ASC- SOUTHLAKE Case No. Attachment E ZA17-044 Page 30 ,MATERIALS (ZA16-044) APPROVED SEPTEMBER 6, 2016 (ORD. NO. 480-439C) } pr 1�4`•i ' GROUNDgrorgsA STONE SUFE �'K` GROUND FACE a. -fir CORDOVABUFF _ _e a_^C,ROUND FACE ACF II STONE(S-1( CORDOVA STONE BUFF GROIAD FACE STUCCO(ST-1)SMOOTH FINISH 1 rill , STUOCOIST-1( � ad,,,&-lea tEJCi1.RED FN1S11 PERSPECTIVE VIEW 1 140.3 PROJECT 0 O1 NORTH HOUSTON STREET DALLAS,TEXAS 75202 DR I SE 211,748.2000 TDDC ASC - SOUTHLAKE =6i6 Case No. Attachment E Page 31 ZA17-044 TREE CONSERVATION PLAN (ZA16-044) APPROVED SEPTEMBER 6, 2016 (ORD. NO. 480-439C) . . ... .., , . ..... ...... . ... .......... '/* 1,1. : .',.....: -.,-,.....• .. .......... ---71--÷0.. •A Ili -: ."4-7::. 7= :: : :11:: .. -----*- ‘ ;1 E11 :iff 72— . ---- • - .,•/' tot F,'. = FE47.-z.,... ., / -•. kl. a V;:"-V / ,e.,,,„7.**iik.. &ITO ‘" ,. .^ ' : I Z s% =a1.-.4.r...-.....a.varr.c =:- -7= E.'..4. 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FAY rrn ATA—AMK AP NAM*V DE Oh OF SIBBIBAK ma.OMAN TIM. I I— ' I /MG.UT ACP1,117.1114/1042FJ AP We WAWA A.&MP . .'e.,' I&WAS LASSO RAPRET.ABBITACT AO•KA AA.. 1PCFR flA.lirPleC SS ZIO,LAWN,ARK LATE ROBE 11111111.1.1—asimana ma ARIAVATOK ETAS na006-7.0 A.BAKAeseAKK AK. .104114=1. ammo lase wear COM,1.1401 EA&r alk A BELLE;..,'.....::-.1 Ifir FIRMA • Case No. Attachment E ZA17-044 Page 32 LANDSCAPE PLAN (ZA16-044) APPROVED SEPTEMBER 6, 2Q16 (ORD. NO. 480-439C) PLANT LEGEND r• SYMBOL BOTANICAL NAME COMMON NAME ��� TREES)) ' ��.4 O Existing Tree 0 410 ZA0111 • — — ' I• Ulmus parvlfolla'Sempervirens' Lacebark Elm V ,1,4*. 11 �r a Quercus virginiana Live Oak / Lagers[rcemia indica Tuscarora' Crepe Myrtle Tuscarora' / . • Vrtex agnus-casms Vitex ./ / SHRUBS/GROUNDCOVER gis Abella grandiflora'Edward Goucher' Dwarf Abel.'Edward Goucher' M/ Myrica pusilla Dwarf Wax Myrtle \ sr,�, a� Muhlenbergra cap.Uans Gel Moldy � Raphiolepsis ind7ca'Clara' Indian Hawthorne'Cara' •\ 00 NasseHa fenuissima Mexican Feathergrass (1 40. ) Nr Seasonal Color ,/ wA Salvia greggil'Red. Salvia Greggli'Red. V \ \ • Juniperus scopulorum'Skyrocket' Skyrocket Juniper �`�jR «N Leucophyllum frutescens'Green Cloud' Texas Sage'Green Cloud' am Euonymus fortune,'Coloratus' Wintercreeper Cynondon dad pion Common Bermudagrass 4�►lll Colorado River Rock �, r'1 0110 ) ^ . • , \ Il Case No. Attachment E ZA17-044 Page 33 tz • LANDSCAPE PLAN (ZA16-044) APPROVED SEPTEMBER 6, 2016 a (ORD. NO. 480-439C) \\ 24'COMM ACCESS / \ UTILITY EMENT `\ CAB.A, 9866 \• P R..CT • \ \ \ 6 \ UNIT OFEOD '•' rrr� B \\ \ \\ EXLsnmo TREE/ {{�a .10 •/i�7,,I B 5"BUFiERYARD \ \ TO REMAIN.TYP ..• /"it N� I TYPE A LO 4 \\ \ E79 __ - - 1! -13 I- THOMAS EASTER No. 474 \\ \ ‘‘,7,.(%\ \/ _ D ® _ • 44I CAB. A, SL. 4123 \ \ .m O - - @L I . .R.T.C.T. \\ \. \ s'BLRi61YARD TYPE'A' O:' ©r 24"HARDWOOD MULCH --�i '4N11., I ` I t 1 CLEAR AND GRUB \ \ , am.TIP.BTWN. UNDERSTORY BRUSH UNDER \\ \\ 1 D !air\ BLUDINO AND 9N11UB0% ou)T : . 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UNDERSTORY BRUSH UNDER \ Via Y,tl� 0A EXISTING TREES.TYP \ \\ ::\\ 1`E4 'rte. \ \\ O« IS •ftLOT 5R, BLOCK 5 0 k 1K1 CORNERSTONE BUSINESS PARK \ � CAB. A, SL. 9886 \ \\\4%74°00' PRTCT /\ \ �\• \ 01 , PLANT LIST \\ \,�\\I MET OF SOD SYMBOL BOTANICAL NAME COMMON NAME CITY 512E REMARKS \ \L\ \' I Iii RIES I `\ \\!. I I CM Lpr.rmw.a sake Tuscarora' Gap USIA.Yucr.ri 5 33 pl =mom nom.3.5 wt.moa..errs.B.N..4'toned.SOIMarO I \ \ I r LE Lama p,.FS.'SarpLam......sLam.Urn ¢ 3' I. .rM.R.pawn.12 N.,4'.prd,I4-d.q M.,n.Idsq I N LO Osamu,.siva.. U.OSL 2 4'.Y. comm pecan.1G IL.5'spool 5'Srarrl ne N_m.o.] \ K KN...pw<uro V. 2 r.N. BAD a.camwr gown°'M..4'apa.A 7 bot nit. I \ I 5 I \ SHRUB B 4445M griaaular&Mse,Gowns,' Own,AMwM ie'Edwa,0 Gkr' 33 5oal. n.NB'I.I .sot*.24 w. •se.ROUMX0VERI V A \ LOT 6, BLOCK B DMA Mlrr.p.A. Ononl Wax Myrtle 57 5 pd. tootatrot 1J.20'.pr-4 b•u. I EMENT IA MJ,Mibrps..m'a Man He 5 58.1. aarrna.80. .n I COMMERCE BUSINESS IN R.o'.nbpsi.:r.aos'dre' Irt.n Hem..'and 35 5 p1. ..m full.20•tww 24'n.. T9666 � I I VOL. 388-214, PG. MPG Abaed.r.n.,a.p Meacm Fm<N.rpaa. 200 I yl. commoner NO.1Y r.. P.R T C T. SC S.eeenel Colo- 215 4•pets m.a.rl tut.12•net_tal.Mim by On. I I SO Salsa 558 4s.oarb'RM'vG..gpi(ba' B• 1554..59.1. ( 4tut 20•spume,24'a. I , _L.r SJ ea.0 acrn'...rack..' SLsman Jun:pr I 9 tot contents 54.S M.p.mot*. 7r,.ep'ua 8.....acct•Gtr-:Ch..• ..«Cla..a .car 134 r or ort M•ate. WC 00 l nrl...a IJ+tl dn.ro' xpm 1400 4'pet. cnnpv I311Y emato Irr..12'no. SOD cy.,ada+dprr+a• CO......camaera..M°,..a sok,oat oda tomato Case No. Attachment E ZA17-044 Page 34 CONCEPT/SITE PLAN (ZA17-044) Reserved for approved plan Case No. Attachment E ZA17-044 Page 35 8/15/2017 Ci.southlake.tx.us Mail-Fwd:TDDC Southlake Glass Box Lobby vs.Punched Windows iticmy aF Jerod Potts <jpotts@ci.southlake.tx.us> Fwd: TDDC Southlake: Glass Box Lobby vs. Punched Windows 1 message Ken Baker<kbaker@ci.southlake.tx.us> Tue, Aug 15, 2017 at 5:45 PM To: Jerod Potts <jpotts@ci.southlake.tx.us> Sent from my iPhone Begin forwarded message: From: Truby McDougal Date:August 15, 2017 a 111.11Illimm To: Richard Schell <rschell@ci.southlake.tx.us>, "Ken Baker(kbaker@ci.southlake.tx.us)" <kbaker@ci.southlake.tx.us> Cc: Tina Larsen Subject: FW: T ou ace: ass ox Lobby vs. Punched Windows Richard/Ken, See below from the acoustical consultant regarding the issue with the original all glass waiting room/lobby. Reducing the glass behind the blade wall was the only way we were able to keep the glass in front of it. Let us know if there is anything else we can help clarify. Thank you for how you've worked with us throughout the project. We think it's a great addition to the area and use of the land. TRUBY MCDOUGAL AIA, EDAC, LEED BD+C VICE PRESIDENT CORGAN D 214 757 1649 M 214 212 3632 From: David Marsh [mailto Sent:Tuesday, August 15, To: Truby McDougal Subject: TDDC Sout ace: ass ox o y vs. unched Windows Truby: This e-mail is to summarize the necessity for solid walls with punched windows in the Lobby/Waiting area of the TDDC Southlake project. Your original design had an all glass storefront essentially from top to bottom as the entire exterior wall of the Lobby/Waiting area. This made it impossible to satisfy the 35 dB https//mail.google.com/mad/u/0/?ui=2&ik=c96eb0c1b4&jsver=z3kHg2VWLDs.en.&view=pt&search=mbox&th=15de812f14cd1d22&siml=15de812f14c 1/2 8/15/2017 Ci.southlake.tx.us Mail-Fwd:TDDC Southlake Glass Box Lobby vs.Punched Windows noise reduction required by the local noise regulations. With the entire exterior wall consisting entirely of glass, the noise reduction would obviously have to be entirely provided by the glass. Any configuration of glass typically used in commercial construction, even with insulating glass or insulating laminated glass, cannot achieve 35 dB of noise reduction. Corgan changed the design of the Lobby/Waiting area based on concerns we expressed about the noise reduction requirement in our initial discussions about this project. The redesign consisted of limited glass storefront in combination with solid walls and punched windows. We calculated the combined effect (composite noise reduction) and recommended using a 1-3/4" insulating laminated glass configuration for all glass (punched windows and storefront). The predicted composite noise reduction ratings are STC 47 and OITC 37 with the latter best representing the A-weighted noise reduction (dBA). Please let me know if you require additional assistance on completion of this project. Regards, David Marsh,FASA President,Principal Marsh I PMK International, LLC 1130 E.Arapaho Road,Suite 580 Richardson,TX 75081 +1.214.814.5940(office) +1.214.307.5013(direct) +1 469 964.9584(mobile) MARSFt Pink Website: www.marshpmk.com https://mail.google.com/mail/u/0/Tui=2&ik=c96ebOc1b4&jsver=z3kHg2VWLDs.en.&view=pt&search=inbox&th=15de812f14cd1d22&siml=15de812f14c 2/2 i r • A MSFfNP1c ) --11P11."---111"HOP-1101"111"1114"4"-- January 10, 2017 Mr. Truby McDougal Corgan Associates, Inc. 401 North Houston Street Dallas, TX 75202 Re: Ambulatory Surgery Center, Nolen Drive, Southlake—NLR Evaluation & Certification Marsh/PMK Project# 16021-01 Dear Truby At your request, we have evaluated the Noise Level Reduction (NLR) provided by the building shell of the planned Ambulatory Surgery Center in Southlake, TX. The project site on Nolen Drive in Southlake is within the Dallas/Fort Worth International Airport Overlay Zone as defined by the Airport Compatible Land Use Zoning Ordinance 479. Figures 1 and 2 verify that the project site is within the Ldn 75 noise contour. This means that 35 dB of noise reduction must be provided by the building shell. ?• '. r la*-,..10:,L,. . LEWISVIrr ,.4 :171�! i1114--,,z1---2114:: 1°. t '' -''.0 '.;"*,:‘141B.'"';'"AT :---'1.7Ni:1-,--:., x . -kelt k ! 4494. __ . . :i.i' ,,.mac1n { a j i,p _ '-A. Project location within e3 'j1.?Ille. - '41 ,1 iir`.. ,-- raii•;I Ldn 75 noise contour '� `'�1' s '� -�' .._,:i. . ,.., _ 1 r •l �. `�' .St�:,y r 1.17.__iiki1�'>il - 14"**■■.. .e ` ,rt ��/ice, .., Ge. i 2�reti\ 0 0 Ye rf..4a1 1 !r "1 M9�r jk WW`s , , , I ,,,5 `, - p. b.-- rr�,..,C 1.A 1 '' P _ . r ` ig= , ' - '- .4,•-•.:,--,.., isi, • � ' :,, r�i �! :.1 F,r S of , it _ i4� I 11`I / nim n� . I a� t` ,Il. � r��:.i;.'dt�.z ,* -._`\ �; Ls. ., ..r ,ti , r- -s- '�.,, �. I i/--ti. ccs!' ��v 1 y En*try, A=.- -„T�'9IE��•311 � t`�I� I, �,{L1• wr� 11, lY �+ Xf ,,I L 2114 . , easy 1 Te: 1 --17.1 1,,,' i..� . 111 1 - - jr.. , ,._ .,_?li.oLlii I;., I .,...,-,,11.=_ - ,.. . - ...as:::.ai xaa,4ai rilYF �;.."i dila -ill.:. __....�- 'w-•.0 --- :-.�4Rt I, a'�h9.t-o •efl- ., Figure 1 -DFW International Airport Overlay Map with La 75 Figure 2-Google Map with project site marked combined with noise contours indicated in green and Ldr,65 contours in purple. Airport Overlay Map shows location with Lar,75 noise contour. Marsh / PMK International. LLC111. www.marshpmk corn1130 E. Arapaho Road, Suite 580 IF Office +1 214 814 5940 Richardson, Texas 75081 USA Fax +1 877 521 7071 Ambulatory Surgical Center, Southlake, TX—Acoustical Report 1/10/2017 Page 2 ACOUSTICAL DEFINITIONS OF TERMS USED IN THIS REPORT Decibel (dB) The decibel, abbreviated dB, is an indicator of relative loudness that ranges from the threshold of hearing, OdB, to the threshold of pain, about 140dB. Human hearing perception is not linear, it is logarithmic, as is the decibel scale. This is because the sound power of a 140 dB level at the top of human hearing range represents a change in sound • power of 100 trillion. The logarithmic decibel scale is the only way to reduce the level values to manageable numbers. Following are some guidelines to understanding level changes in dB: • 1 dB is a just noticeable change in the absence of any other noise. • 3 dB is a barely noticeable change to the average person in a relatively quiet environment. • 5 or 6 dB is plainly noticeable change. A 6 dB increase sounds about 1-1/2 times louder. -6 dB is 2/3 as loud. • A 10 dB level increase sounds about twice as loud. -10 dB sound about half as loud. Frequency in Hertz(Hz), Octave Bands and 1/3-Octave Bands Sound waves are vibrations of the atmospheric pressure. A frequency is the number of vibration cycles per second expressed in hertz (abbreviated Hz) after the German physicist Heinrich Hertz. One thousand Hz is 1 kHz. A person with normal hearing can detect a range of 20 Hz to 20,000 Hertz. A note on a piano that is one octave higher in pitch has a frequency that is twice that of the original note. So, note A4 vibrates at a frequency of 440 Hz and A5 (one octave higher)vibrates at 880 Hz. Noise measurement and analysis often uses one octave wide frequency bands, or octave bands. A range of 63 Hz to 8 kHz is sufficient for most noise work. The industry standard octave band center frequencies of in this range are 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz and 8 kHz. When possible, we prefer to use 1/3-octave bands for measurements and analysis because of the additional amount of detail provided. A-weighting (dBA) Perceived loudness of a sound is frequency dependent. Human hearing is most sensitive to the midrange frequencies from about 500 Hz to 4 kHz. Our hearing is far less sensitive at low frequencies and at very high frequencies. When noise is measured and cited as an overall or broadband level, the frequency spectrum is weighted in such a way that the low frequencies (especially) make less of a contribution to the overall result. There are a number of weighting types. The one used in virtually all environmental standards is the"A"weighting. When a broadband level has been A-weighted, it is most often indicated by adding an "A"to the dB unit(dBA). Ldn and DNL The average day-night level, Ldr, (also called DNL), is a 24-hour average of the A-weighted noise that takes into consideration the additional sensitivity to noise during nighttime hours by adding a 10 dB penalty to all noise occurring between 10:00 PM and 7:00 AM. STC and OITC While the Sound Transmission Class (STC) design metric is widely used and understood, the more appropriate metric for environmental noise is the Outdoor-Indoor Transmission Class (OITC). STC was initially developed as a means of rating an assembly's ability to attenuate transmission of speech sounds from one room to another. Therefore, the lowest frequency considered is 125 Hz. OITC was developed as a means of rating the ability of a building façade component to attenuate transportation-related noise down to 80 Hz. STC is a curve-fitting method that does not yield a number that can simply be subtracted from the source side noise level to estimate the receiver side level. OITC is a calculation method specifically designed to provide this feature. Subtracting an OITC rating from the outdoor A-weighted noise level provides a close estimate of the indoor A-weighted level. OBJECTIVES Airport noise contours are developed based on predicted long-term (annual) average day-night levels. Because the Ambulatory Surgery Center is within the Ld„ 75 noise contour, Ordinance 471 requires that the building shell reduce outdoor-to-indoor noise transmission by 35 dB. Our two objectives were to determine if the current design meets this requirement and if not, to develop and recommend improvements to achieve 35 dB of NLR. Marsh / PMK International LLC www marshpmk corn 1130 E Arapaho Road. Suite 580fib 1111 "Pi* Office +1 214 814 5940 Richardson. Texas 75081 USA Fax +1 877 521 7071 Ambulatory Surgical Center, Southlake, TX—Acoustical Report 1/10/2017 Page 3 ANALYSIS Approach We evaluated the building "from the inside out," considering the outdoor-to-indoor noise transmission paths from the perspective of a person in each space with a unique mix of exterior façade components including roof/ceiling, walls, windows and doors. We determined the 1/3-octave sound transmission loss (TL) characteristics of each component either from available laboratory test reports or by acoustical modeling (if test reports were not available) For each space, we determined the total area of exterior building components and the percentage of that area applicable to each component. We then combined the TL data to arrive at a"composite TL curve"for each space. From the composite TL curve, we calculated the STC and OITC ratings. Overall Results Figures 3 and 4 compare the overall TL curves and ratings of each space, first as designed and then with some improvements that we will describe going forward. The shape of each curve reveals strengths and weaknesses of the NLR at specific 1/3-octave frequency bands. The key piece of information is the composite OITC rating of each space,which is provided in the legend of each chart. Note that in Figure 3(as designed), the range of OITC ratings is from 28 to 30. This means that at least 5 to 7 dB of additional noise reduction is required. To account for possible calculation inaccuracies (especially where we relied on acoustical modeling), we prefer to have a 3 dB minimum margin of safety. Therefore, we'd like for all OITC ratings to be at least 38. Notice on the chart of Figure 4 (with recommended NLR improvements)that the range of OITC ratings is 38 to 41. Composite TI&Ratings:As Designed Composite TL&Ratings:With improvements 35 35 30 80 75 75 70 70 ss ss Ar i0 00 —55 55 m _ m a 1711 II 50 " 5U 0 g45 ' 45 E w Etc / r � 9 35 v 35 30 f '�^ 30 / --"�► i 25 / 25 20 ....Reception 109&Waning 1001SIC 38 OITC 2R) 20 —4eceonoo 109&Waning 100(ST(47.017t_38) Office 110(SIC 41,OITC 30) OHire 110(STC 49 OITC 391 15 �Off,ro 111 IST[41.OITC 30) i5 Office 111(STC 48.OITC 45) 10 —Pie-Op 115 i5.117.39,017C 28) 10 —Pre-Op 115(STC 48.017<..33) Endo 120(513 41 OITC 29) —Lido 120157[Si 01TC 41) 5 —Dictation 133(57139,OIrc 28) - --Dictation 133(CR SO.OITC 39) n 0 1/3-Octave Center Frequency(Hz) 1/3-Octave Canter Frequency(Hz) Figure 3—Predicted composite TL curves by space along with Figure 4—Predicted composite TL curves and ratings based on composite SIC and OITC ratings based on the current design. the recommended NLR improvements. Marsh i PMK International LLC www marshpmk corn 1130 E Arapaho Road. Suite 580 Office +1 214 814.5940 Richardson, Texas 75081 USA 1 Fax +1.877 521 7071 Ambulatory Surgical Center, Southlake, TX-Acoustical Report r 1/10/2017 Page 4 Recommended Roof-Ceilinq Improvements Effect of Recommended Roof-Ceiling Improvements The currently designed roof-ceiling assembly is the 35 most important weakness in the NLR capabilities of the building shell. We recommend sandwiching the 30 polyisocyanurate roofing insulation between two 75 , Georgia-Pacific DensDeck roof boards. In our ,�� acoustical model, we added a '/" DensDeck board on ° ,//' top of the polyisocyanurate (under the TPO roofing 65 // membrane) and a %" DensDeck board under the 50 / . polyisocyanurate (on top of the metal roof deck). Additionally, we added R-15 (3-1/2" thick) fiberglass _75 %/' insulation on top of the lay-in ceiling to provide N;o 1 damping in the air cavity between the roof deck and // the ceiling. These changes increased the roof-ceiling °45 ' STC from 37 to 48 and the OITC from 26 to 38. The N,° /; change in roof-ceiling TL values are seen by the blue - •`/ , curves in Figure 5 where the dashed line is "as 35 /,, ' designed"and the solid line is"with improvements." 4, 30 /i: The best example we have of how improving the roof 25 ' improves the building NLR is in Endo (120) because _ :11/ this room has no exterior windows or doors. The 20 ./% ` composite TL values and resulting composite ratings 15 ``%%,,/ --•Roof Model,As Designed iSTC 37 OITC 25) are entirely made up of one exterior wall in 10 —Roof Model w/changes(STC 18.OITC 381 combination with the roof-ceiling assembly. The red ---Endo 120,A Designed(ST(41,OITC 291 curves in Figure 5 show the 1/3-octave composite TL -Endo 120,improved Root-Ceiling(STC.il,OITC 111 improvements to Endo (120) with the composite STC 0 rating going from 41 to 51 and the composite OITC -2 2 o ^ F ?1 m e i o G o = o ; 1 i; f from 29 to 41. While this is more than is needed for 1/3-Octave Center Frequency(Hz) this particular room, the degree of improvement in the Figure 5-Results of recommended improvements to the roof- roof-ceiling assembly is required in order to achieve the needed NLR in rooms that have windows. ceiling assembly using Endo 120 as an example. Windows Even in Pre-Op (115) where there are many punched windows, the improved roof-ceiling assembly is enough to achieve the required NLR. However, the Reception/Waiting (109/100) space has so much glass area that this becomes the limiting factor. In the current design, the storefront and punched windows are 1" insulating glass comprised of two 1/4" glass panels separated by a 1/" air space. We looked at making one of the glass panels laminated, but this fell short. Even laminating both panels with the typical polyvinyl butyral (PVB)interlayer material fell short. However, using a newer and superior interlayer material called ESCL(enhanced sound control laminate) from Northwestern Industries achieved the goal. Please note that we are recommending use of insulating double laminated glass with ESCL not only for the storefront, but also for the four punched windows in the west side of the Reception/Waiting area. Comparing the dark blue curves on Figures 3 and 4 shows that this improves the OITC rating from 28 to 38, which fulfills our desire for a 3 dB margin of safety above the required NLR of 35 dB. Exterior Door at Dictation (133) Assuming a hollow metal exterior door in Dictation (133), the NLR falls well short of the 35 dB requirement. We've determined that an STC 45 acoustical door is needed. We recommend Model 459573 Metal Door from Overly Doors Company. Using this door will raise the composite OITC rating for Dictation (133) from 28 to 39. Product literature for the recommended door can be downloaded at the following link: http://door.overly com/product/459573 Marsh / PMK International. LLC www marshpmk corn 1130 E Arapaho Road, Suite 580fill f IPf 004 Office +1.214 814 5940 Richardson, Texas 75081 USA Fax +1 877 521 7071 Ambulatory Surgical Center, Southlake, TX-Acoustical Report 1/10/2017 Page 5 SUMMARY AND CONCLUSION The Ambulatory Surgical Center in Southlake as designed does not meet the 35 dB NLR requirement of Airport Compatible Land Use Zoning Ordinance 479. We have recommended the sandwiching the roofing insulation between two roofing boards and adding R-15 insulation on top of the lay-in ceiling to improve the overall roof-ceiling assembly. We have recommended upgrading the storefront glass and the glass in punched windows within the Waiting/Reception area to insulating double laminated glass with a specific type of interlayer material. Finally, we have recommended using an STC 45 acoustical door in the exterior wall of Dictation (133). We hereby certify that the building shell evaluation for Noise Level Reduction (NLR)was carried out in accordance with the standards of the acoustical design industry. Our calculations and results indicate that incorporation of the recommended additional sound attenuating features described above, with proper attention to any penetrations of the shell, should produce an overall NLR of at least 35 dB. This concludes our report. Please feel free to call me on my mobile phone at 469-964-9584 if you have questions. Sincerely, Marsh/PMK International, LLC (t.-644.-1 David E. Marsh, FASA Principal cc: Cleve Doyen-Marsh/PMK Marsh / PMK International, LLC www marshpmk com 000 1130E Arapaho Road, Suite 580 Office +1.214 814 5940 Fax +1 877 521 7071 Richardson, Texas 75081 USA MARist pn . k3S March 24, 2017 Mr. Danny Rodriguez Corgan Associates, Inc. 401 North Houston Street Dallas, TX 75202 Re: Ambulatory Surgery Center, Nolen Drive, Southlake—Lobby/Waiting Area Glass Re-evaluation Marsh/PMK Project# 16021-01 Dear Danny: In the Reception/Waiting area of the referenced project, Corgan expressed a preference to use standard PVB interlayer within the insulating laminated glass make-up rather than the ESCL interlayer we recommended. We have re-evaluated the glass sound attenuation requirements based on standard PVB interlayer and based on the drawing mark-ups you provided. For the record, our calculations were limited to the Reception/Waiting area as we believe this the Business Office should be treated separately. Our 1/17/17 report concluded that the recommended roof improvement will provide adequate sound attenuation for the Business Office(i.e., the 1" insulating glass does not need to be upgraded). Your mark-ups clarified that a portion of the storefront is essentially spandrel glass. You suggested that this could be backed up by a"1-sided wall" above the ceiling. ! On the right is the top portion of a sketch you sent to illustrate t)-7. your idea of using a wall behind the spandrel portion of the 9 --•.. storefront. Your wall (in blue) abuts to an I-beam at the top. � ,, Instead, we recommend a continuous layer of 5/8" Type X gypsum board, a"single-sided wall"from the ceiling up to the deck, to completely seal off the spandrel glass section from ►N)u1.A'rIcrJ the ceiling plenum. This approach is represented by a double red line that was added to your sketch. The entire perimeter r 3=/s"rrrc Slut) of the wall should be sealed to adjoining surfaces with a non- {a/g"G,YP hardening acoustical caulk. 3"thick insulation should be used as you have shown. Our analysis showed that the "spandrel wall" improved the sound attenuation marginally, but the overall OITC rating (the composite OITC)still fell short. Recall that we are looking for to- a composite OITC rating somewhat above 35, preferably at least 37 or 38. We found that a 1-3/4" insulating laminated glass provides the needed additional sound attenuation. The recommended make-up generally consists of two 3/8" glass panels with a 1" airspace between them. The inside panel is comprised of two 1/4" panels laminated together with a 0.03" PVB interlayer. Our analysis yielded a composite OITC 37 based on this glass make-up for the storefront (including the spandrel portion) and the four punched windows in the Reception/Waiting area along with the recommended wall behind the spandrel glass. Marsh / PMK International LLC www marshpmk corn 1130 E. Arapaho Road, Suite 580 rjrOffice +1 214 814.5940 Richardson, Texas 75081 USA Fax +1.877 521 7071 Ambulatory Surgical Center, Southlake, TX—Acoustical Report 3/24/2017 Page 2 The chart below plots the calculated 1/3-octave transmission loss (TL) values for the current design and with the recommended changes. These changes provide significantly improved TL values, especially in the speech frequency range where the improvement is nominally 6 dB. Composite TL&Ratings: Reception/Waiting Area 75 70 65 60 55 50 m 45 0 o 40 N 35 30 7 25 20 15 10 5 0 N D O O O O O O O OO O ON O O O O O O W o N 0 0 O N 1/3-Octave Center Frequency(Hz) —Current Design(SIC 42,OITC 35) �W rth InsLarC'ass&ipandrel Wall(STC 47,OITC 37) This concludes our report. We hope the information provided with keep the project moving forward. Feel free to call me if you have any questions. Sincerely, Marsh/PMK International, LLC S614-1 4V 1$ t David E. Marsh, FASA Principal cc: Truby McDougal&Wesley Johnston—Corgan Cleve Doyen—Marsh/PMK Marsh / PMK International. LLC www marshpmk.com 1414" 1130E Arapaho Road, Suite 580 $ Office +1.214 814.5940 Richardson Texas 75081 USA Fax +1 877.521.7071 1