Item 6D - Narrative and RegulationsResidential Planned Unit Development District-
Land Use and Development Regulations,
Variance Request and Open Space Management Plan
For Option “B”
for the 13.09 acre development located at
2970 Burney Lane known as
The Conservation
Southlake, Texas
17 November 2020
Case # ZA20-0049
Sage Group, Inc.
This Residential Planned Unit Development shall abide by the all conditions of the City of
Southlake Comprehensive Zoning Ordinance No. 480, as amended, as it pertains to the “SF-1A”
Single-Family Residential zoning district; and the City of Southlake Subdivision Ordinance No. 483,
as amended:
The following regulations shall apply to all lots, except as noted:
Minimum House Size: All new houses constructed shall be a minimum of 4,000 s.f. in floor area.
Street: A 25’ B-B pavement section with standard 6” curb (transitioning to a non-curbed section,
as it approaches Burney Lane), in a 40’ Access Easement shall be provided along the frontage of
the residential lots. The cul-de-sac shall have a 100’ B-B outside diameter of paving, in a one
hundred ten (110’) foot diameter easement.
Allowing for the length of the cul-de-sac to exceed 1,000 feet (Subdivision Ordinance No. 483,
Article V, Section 5.03).
Residential Lots shall not be required to front on a public street. (Subdivision Ordinance No. 483,
as amended, Article VIII Miscellaneous Requirements, Section 8.01 Lotting Requirements, A.).
Street Lights & Sidewalks: In keeping with the nearby neighborhood conventions, no street lights
nor sidewalks shall be required along the Access Easement.
Side and rear lot lines shall be configured as shown on the Development Plan.
All newly constructed homes shall be required to be protected by a fire-suppression sprinkler
system.
No separate common open space lot shall be required, consistent with the normal requirements of
SF-1A zoning, which this development is patterned after.
In the Open Space, Pedestrian Access and Wildlife Easement, no construction, fences or living
tree removal shall be allowed.
City sewer is and will not be available at this site, so this development requests a waiver to the
normal requirement, listed in Chapter 19, Article III, Division 2, Section 19-88 of the Southlake
Code or Ordinances, to install a sewage collection system that extends to the development’s
borders and throughout the development.
If, in the construction of the road, grading or drainage associated with the Access Easement, any
damage occurs to trees on the adjacent Lot 9, Block 2 of Harbor Oaks leading to the death of
those trees, such trees with be replaced, inch for inch, with quality Red, Bur or Live Oak trees.
Open Space Management Plan:
The “Access Easement,” “Landscape, Mail, Public Pedestrian and Equestrian Access Easement”
and the “Open Space and Wildlife Easement” areas in the project, and common facilities such as
the access road, shall be maintained by a Homeowners Association (HOA), to be established for
the development. All other areas shall be the responsibility of the individual property owners,
including the front yards and required streetscape trees of the residential lots. All property owners
shall be required to be a member of the HOA. Dues assessments, required for the maintenance of
the landscape easement areas and other HOA activities, shall be mandatory.
The HOA, through a resident Board of Directors, shall be responsible for the maintenance and
operation of the protected open space within the development, either directly or through a third-
party management company. No full-time employees are contemplated to be necessary. The
expenses required to maintain the roadway and easement areas at a quality level shall be
estimated annually by the HOA Board, and dues shall be determined and assessed on each
property owner in an equitable fashion at such a rate as necessary to maintain such a level of
quality. The annual expenses for such open space maintenance are initially estimated to be
$8,000, or approximately $1,000 for each of the HOA homeowners. Authority to enforce these
requirements, and to place a lien on the property if such dues are not paid, shall be in the form of
written Deed Restrictions and Covenants, agreed to by all property owners in the HOA at
purchase, and shall run with the land.
Provisions shall be made, in the HOA Bylaws and Deed Restrictions, that in the unlikely event the
HOA fails to maintain all or a portion of the protected open space in reasonable order and
condition, the City of Southlake may, but is not required to, assume responsibility for its
maintenance and take corrective action, including the provision of extended maintenance. The
costs of such maintenance may be charged to the HOA or individual property owners that make
up the HOA, and may include administrative costs and penalties which shall become a lien on all
property in the development.
The Conservation
Design Standards for Construction and Exterior Materials
Create deed restrictions which manage the high level of construction expected,
specifically:
1. Minimum Floor Space. All floor areas referenced below are for air-
conditioned floor areas, exclusive of porches, garages, patios, terraces or
breezeways attached to the main dwelling. Each dwelling constructed on any
Lot shall contain a minimum of four thousand (4,000) square feet of heat and
air conditioned floor space.
2. Drives and Walks. The standard finish for the lead walk and driveway will be
salt deck or pavers, and not broom finish concrete. Any other finish must be
approved in writing by the Architectural Control Committee.
3. Structure Materials: Exterior Items and Surfaces. Unless approved by the
Committee, the dominant exterior vertical wall area of each structure,
exclusive of doors and windows, shall be a minimum of 80% masonry (brick,
stone, or stucco over masonry base) or other material solely determined by
the Committee. No more than 20% of the exterior vertical wall to be
authentic lath and stucco application over wood framing. Dryvit systems or
Styrofoam products are not acceptable. The exterior of chimney flues shall
be of masonry material acceptable to the Committee. Installation of all types
of exterior items and surfaces such as address numbers or external
ornamentation, lights, mail chutes, mailboxes, roofing materials and exterior
paint or stain, shall be subject to the approval of the Committee as to size,
design, materials color, manufacturer and location.
4. Roofing Materials. The Architectural Control Committee will only approve
roofing materials which are of the highest grade and quality and which are
consistent with the external design, color and appearance of other
improvements within the subdivision. Roofing materials which are metal,
slate, slate like, clay, barrel tile, copper, minimum 50 year composition
shingle, or concrete are the minimum standard of quality for roofing material
to be used. The roof pitch of any structure shall be approved based on the
roof type associated with architectural style of the home. Any deviation of
roof pitch or roofing material must be approved in writing by the
Architectural Control Committee.
5. Windows. Windows must be wood or fibrex composite clad, steel, or bronze
and submitted for review of Committee approval. Window mullions that are
appropriate for the selected architectural style are required and shall be
approved by the Committee.