Item 6H - SPIN Report IDSOUTHLAKE
SPIN MEETING REPORT
Case Number: SPIN16-23
Project Name: Proposed amendments to both Zoning Ordinance No. 480 and the
Subdivision Ordinance No. 483
SPIN Neighborhood: Citywide
Meeting Date: July 26, 2016
Meeting Location: 1400 Main Street, Southlake, TX
City Council Chambers
Total Attendance: Four (4)
Host: Randy Robbins, Community Engagement Committee
Applicant Presenting: David Jones, Principal Planner
City Staff Present: David Jones, Principal Planner, Dennis Killough, Deputy Director of
Planning and Development Services, Steven Anderson, Deputy City
Engineer; Jerod Potts, Planner I; Lorrie Fletcher, Planner I
Attached to the end of this report are the Blackboard Connect Delivery Results for the July 26, 2016 SPIN
Town Hall Forum
Town Hall Forums can be viewed in their entirety by visiting http://www.cityofsouthlake.com and clicking
on "Learn More" under Video On Demand; forums are listed under SPIN by meeting date.
FORUM SUMMARY:
Development Details:
Sustainability Plan adopted as part of the Southlake 2030 Comprehensive Plan.
Contains prioritized recommendations to maximize the efficient use of public resources
• Creek Buffer— Tier 1 recommendation of Sustainability Plan
o Intention is to reduce erosion, preserve habitat, increase open space, and
minimize impacts from site development and increases in impervious
coverage
o Benefits of creek buffer is they can be used as nonstructural stormwater
filtering and infiltration zones, keeps structures out of the floodplain, provides
ROW for large flood events, and helps preserve riparian ecosystems and
habitats
o This ties back in to the adopted Integrated Stormwater Management Manual
(iSWM) — another recommendation from the Sustainability Plan to adopt
recommendations within that document
• Proposed amendments to Ord. No. 480 (stream/creek buffer):
o Allow bufferyard credit on property boundary containing buffer or on
boundaries parallel to the buffer
o Allow 1 for 1 tree credit for saving native trees within the border
o For sites that have a meandering stream or a stream that runs diagonally
through the site the credit would work differently
• Proposed amendments to Ord. No. 480 (permeable pavement):
o Consider incentivizing permeable pavement (such as credits toward
impervious coverage limitations) — Tier 2 Recommendation in
Sustainability Master Plan
o Benefits of permeable pavement include: reduces stormwater runoff,
allows rainfall to percolate into the soil rather than sheet flowing into
waterways, reduces surface temperatures, and reduces pooling of water
during rain events
o Permeable concrete and asphalt would be allowed to serve as an offset if
a developer wishes to increase impervious coverage over the maximum
that is allowed
o Ordinance amendment would allow for up to a 5% increase in that
maximum impervious coverage if a minimum amount of permeable
surface is used
o Ordinance would also add a definition for permeable pavement and it
would allow permeable pavers to be approved on a case by case basis
o Systems using grass or gravel would not quality as a permeable all-
weather surface
Exhibits presented at SPIN:
rt
CITY F
... SC)UT LAK
Sustainability Plan
Adopted in 2014 (Ord. No. 1 1 04)
Park of City's Comprehensive
Plan, Southlake 2030.
City of Sourtftke
Contains prioritized }� d� w.
-- ,—.,,1
,.recommendationsto maximize �-i4�'
efficient use of public resources.
IL Background
C itiZe n s S u rqev Strateg'a: 1,13P Southlake203QPlan
Amendment Details — reels Buffer
Tier I recommendation of the 2015 Sustainability
Master Plan is the implementation of a stream/creel
floodplain buffer.
The intention of the buffer is to reduce erosion,
preserve habitat, increase open space, and minimize
impacts from site development and increases in
impervious coverage.
Benefits of Creek Buffer
Can be used as k -
nonstructural stormaterA 4
filtering and infiltration zones;
F
Keeps structures out of the y
floodplain and provides
right-of-way for large flood_ -
Benefits of Creek Buffer
Helps to preserve riparian � y
ecosystems and habitats,
(From iSWfY1 Technic;31 NI;3nua1, rev. 0!14, .�
r
.4
- A
u tai nability Faster PIa n — Goals a rid Objectives
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Sustainability Master Plan
Water Resources Recommendations
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area.
Sustainability M rite r Pla n — Wate r Re nu r e
5 irnp ly pyoid i rrg a buffer area a+I j a ce rrt to
ean7 creels, and flodplains can protect
t mxater quality by allyrring the ecosystem t3
' 5�.4 -y'. is fR naturally collect and treat pollutants in rurlaff
before the yr re a ch sura ce iwters. Buffer areas
- '- can also reduce erosion, presen habitat,
.i ,F6 increase open space, and reduceflooding."
- Pg. 1
a
i Sustainability MasterPlan
Water Resources Recommendations
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Subdiuimon Ordinance
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The adopted Integrated torm ater Management
(iSWM) Manual assists cities in meeting TC E
stormwater requirements, in part by preserving
certain natural site features conducive to a bate rnent.
Preservation and conservation of existing stream and
riparian areas within a site listed as "Integrated Site
Design Practice"sin the i WI ITechnical Manual
int rated Site Design Pmctrce#t1;
Preserve Undisturbed Natural Areas C-ansarvalian ai NaturBI
:Features and Resources
Description: Important naturarl fealures and ELreas such as undisturbed foresled and vegetated areas_
nalmral dralinageways, Stream #(S, wellarwCIS W6 OIhSer importarYt site f-eatOMS Sb%rld t*
diAirreaZe•d and placed into conservation areas.
KEY BENEFITS USSIMC3 THIS PRACTICE
• Helps Io preserve s porton of the sft's neral 121 Delineate rralural areas bafDre
predevelcpment hydrology performing she layout and
■ Can be used as nonstructural SIOmrwateF filtering design
arrd Infiltration zanEr, ❑Ensure #IaI conservalion areas
Helps to preserve the size's n8turel nhera Iter and are pricked in wi undisturbed
aes4hetic features stain uhroughout nnmm
■ Mmyf Inueass the value of Its de prop" and cc cupancy
A stommater site design credit can be taken rf
Offlo wed by Ilh a ISI review igUrMo ity (FrOM rsivM TedrUeMI Mail, PLM)
in freg ted SJ to Design Pratt ice #2;
Preserve Riparian Buffers attire and er Nelu es
� F�arture*and Res�ur��
Description; Nazu rally vegetated buff-ere shwld bo� deI3'nea%-d and preserved along perennial
i5kreaMS,riWer5. Ickes, and werIlands.
KEY BENEFITS UMM6 THIS PRAMCE
■ Can be u d as nonstructural stamwear I1 I Delin"te and pr rwe naturally
filtering and inf&aimn zanrss va!�Oaked ripariarw tuft m
Kemps structures Out of fte Moodplain and Ensure buffers and nabva
providos a 121 etotion are PrQtwe-d
right-of.way toe large flood even% tbm4hout aonstruclion arrd
a Flamm to pr-ASWYe riparian esGsyst,ems aM c0:uporlcy
l imbitats
A sz"mwaler site design reduc4cin credit can
ba taken it allowed by tho I review
authority ...
(FrOM 15WMTWnkM1 MaWl. PL1:5)
Sustainability Master Plan — Built and Natural Environme
Encou rage development that allows floodpl a I rlsr wetl a nds a nd stmm
corridors to remain in a natural state, Consider establishment of
sta nda rd "no deuelo pme nth' distances from these areas i Area Plans E8).
Protect existing tree cover and plant me re trees- Special emphasis should
be placed on,
P reservi rig tree buffers adjacent to flood plain s.
i P reservi ng tree buffers adjacent to n-eig borh ood s.
Maintaining existing vegetation adjacent to roadways when crooded
areas are developed-
Ir addition, ma i rata i ri Tree City USA status arrd evaluate ap uns fur
improving tree protection- (Area Plans E3, E4,& Ell)
u stat nabillity M rite r Pla n
Built and Natural Environment Frrrmrl tions
r
Flo-. Reco-mmendatim I Implrmeritstio-n Metrlc !St ralege ISN GMM A Department Priarily
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iu+dri{e"rkir.g*W.
Typical Creek Buffer Profile
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wW rift kap"r -w"%&-a Vcr n-Mv Weir-.n rti
Proposed Amendmentto Ord. No. 480
Allow buff eryard credit on propel
boundary containing buffer or on
boundaries parallel to the buffer
AlIow 1 for 1 tree credit for saving �
native trees within the buffer
r . 'r
,area measured 25ft from top of bank
#r or 5Oft from thya creek centerline
r r No disturbance within stream buffer
L exceptfor uses allowed In bufferyards
000
Off-street parking
000
Building
00
Saving trees in buffer would allow for
reduction in tree planting requirements.
STREAM ON PROPERTY BOUNDARY
0
r-,.Nl -y0 0 6L F Ci
0 C) ,
0 000
I
10
10 0 0
Width and planting credit allowed for buff eryards parallel to stream corridor
Amendment Details — Permeable Pavement
Consider i ncentivizi ng use of pervi aus pavement (such as with
credits tov.,ards i mpervi aus coverage li mitati ans)
Sustainability M aster Pla�
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+44. Poeoo r+endUtiiorr P+dIItY knpFtrritn[a 4i0n Irt+brit 5tr*1 itfink -Oh Iectreas ftespw%ible 'Tier
Ne
Thee may be&pKr[u66ei
tq;lIpw for pVrvrpus
gridb,rir rer Quality
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WIM her perANui� �r�Ctid suh�la�[ibl p.irkinN.Cbn34dvr 1.11 F�S 2
pro& rr*a4iMEICI Fy PO KIR&1a Inlraslrudlure;
C3
negiuirc peruio-u%paving
when parkitlt imi exceed e
derlaYn um.
Benefits of Permeably
F edUces stormwater rLinoff ;t
and "first flush" pollution
* Allows rainfall to percolate :�Y
into sail rather than sheet _ .
flowing into wate rxays;
• Reduces surface
,. temperatures by absorbing
- more heat than impervious
paving:
j Reduces pooling of water
during rain events
Permeable vs. Conventional Surfaces
Corrventianal Concrete $1.4 W$10.06
Permea bI a Concrete $2.00 t[)$14.00
f26-3096high£F fof permeabk)
Perm eab $0.50
x' es-1 096 n i 9 ker fbrpermeab e?
- - . - $5. tip 517.86
45-7N hI_gh!?r tkvi5[:Y corn trete}
T
- 06moL $1.50 to 57.71
••s Ess,-,nE;' ;iii'-?_s ?: _� -5'x:°}}
Permeable vs. Conventional Surfaces
L * F
nva ntion a l Concrete $1.�4 to$10.06
Pern-kBa bI a Concrete $2.00 to$14JW
(28-3096 higher far permeable)
Conventional Asphalt
Permeable
y
96 higher farpeFmeahre)
00 ti:i1 .
yy����.,,�-�__yy mm44 • '}_, ��-;_y ,y 51.50 to 57.71
'VkJWRJ oy4s 'or%Goo 7AJ Ural =~ :. _s._ ": _ _ =:3 = -.3-}.}
Proposed Amendment to Orel. No. 480
Permeable Concrete and Asphalt
may be used to offset limited LL -
increase in impervious coverage. L
Definition added for permeable .r
pave mrlt,
jr
Permsabl&pavers may be approved
- on a case by case basis.
Systems utilizing grass or gravel
'."could not qualify as a permeable all-
- - L weather surface,
4,000 sf
1.000 sf
LO 0 G�_C�)
Increased imperviOLIS coverage allowed with minimLim area of permeable pavement.
TYPICAL DEVELOPMENT SITE
Possible Schedule
• August 2nd — City ouncil WorkSession
• August 18th — Planning and Zoning Commission
September 6th — Council I st Reading
e ptem ber Oth — Council 2n'l Reading
QUESTIONS / CONCERNS:
None
SPIN Meeting Reports are general observations of SPIN Meetings by City staff and SPIN Representatives.The report is neither verbatim nor official
meeting minutes;rather it serves to inform elected and appointed officials,City staff,and the public of the issues and questions raised by residents and
the general responses made. Responses as summarized in this report should not be taken as guarantees by the applicant. Interested parties are
strongly encouraged to follow the case through the Planning and Zoning Commission and final action by City Council.
Blackboard Connect Delivery Results for the July 26, 2016 SPIN Meeting
Blackboard connect.
This message has been sent!Here is a summary of the delivery results_ Click here to view
more information online.
Delivery Summary
Title SPIN Town Hall Forum-July 26,2016
Message Type Outreach
Site CITY OF SOIJTHLAKE
Scheduled By Daniel Cortez
Send Time 071220016 05=30 PM(CT)
Voice Completed 07=2016 06:12 PM(CT)
Text Completed 07=2016 05=32 PM(CT)
Email Completed 07=2016 05=30 PM(CT)
Selected Contacts 11050
Successfully reached 6599 (50%)
Languages English*
Device Deliveries
5896(6341) 1DB57
9796(174)
Qu 180
94%(53T)
ass
Detailed Delivery Results
Voice llis;en)
Good Afternoon this is Daniel Cortez with the City of Southlake with a reminder of a SPIN
town hall forum taking place next week, on TuescW July 261h at 6Pm, on the following
items: In SPIN neighborhood#10 an applicant is proposing to develop a app raoximately
20,000 square feet of retail buildings and 30,000 square feet of office buildings on 7.5 acres,
being referred to as the Sauthlake Commons, located at 130 S. White Chapel Boulevard.
The next four items are being proposed by the City of Southlake on the following: the
proposed demolition and the new construction of the Southtake Tennis Center at Bicentennial
Park within SPIN Neighborhood#7.Amendments to the City's Sign Ordinance, Zoning
Ordinance and Subdivision Ordinance and lastly amendments to the City's Mobility Master
Plan. Again, a SPIN Town Hall Forum will be held July 26th at bpm in the Southlake Town
Hall Council Chambers_ Thank you for your attention, and if you any questions, please visit
us at wm.southlakespin.org. Have a great weekend!
Successful Deliveries 58% (6341)
Live delivery 1806
Answering Machine 4535
Unsuccessful Deliveries 42% (4516)
Hangup 284
Undeliverable 1652
Opted-out 20
Bad Phone Number 3
Busy 77
No Answer 2480
WnJ Email
Good Afternoon this is Daniel Cortez with the City of Southlake with a reminder of a SPIN
town hall forum taking place next week, on Tuesday July 26th at bpm in the Town Hall
Council Chambers on the following items: In SPIN neighborhood#10 an applicant is
proposing to develop a approximately 20,000 square feet of retail buildings and 30,000
square feet of office buildings on 7.5 acres, being referred to as the Southlake Commons,
located at 130 S. White Chapel Boulevard. The next four items ar...
Email Sent 94% (537)
Email opted-Out 5% (32)
an sms
Follow the link for information: http:1lb1t.ly/SPIN2016Ju126
Text Email Sent 97% (174)
Text Not Sent 2% (4)
Invalid Text Phone 1% (2)