02-19-1990 (Planning & Zoning) Agenda Packet AGENDA
REGULAR MEETING
PLANNING AND maw COMMISSION
CITY OF WYLIE, TEXAS
MOlDAY, FEBRUARY 19, 1990
7:00 P. M. COUNCIL CHAMBERS
MUNICIPAL FLEX
2000 HIGHWAY 78 NORTH
CALL TO ORDER
ORDER OF PAGE
BUSINESS REFERENCE BUSINESS
1 1 - 8 Discussion of landscape Ordinance
2 Adjourn
NOTICE OF REGULAR MEETING
Notice is hereby given that a committee of the City of
Wylie will meet at 7:00 P. M. on the /9 day of
,1990, in the Council Chambers of the Municipal
Complex at 2000 Hwy. 78 North, in the City of Wylie, Texas,
for the purpose of considering the attached agenda.
Carolyn s, S cretary
POSTED THIS THE /4( DAY OF ,1990,
AT `/,/, 3D / M.
LANDSCAPE AND SCREENING REGULATIONS
1 Purpose and Applicability:
(A) Purpose: The purpose of this Chapter is to '<—
provide standards for the installation of
landscaping and screening devices. Required
landscaping and screening devices are intended to
control dust, glare and erosion; to assist in
screening objectionable light, views and noises ;
to visually soften building masses ; to aid in air
quality improvement and effectuate privacy; and to
enhance property values.
( 3 ) Applicability: The regulations of this Chapter
shall apply to:
1 . All buildings and uses of land except single
dwellings and agricultural buildings.
Existing properties , when a change in the
distinguishing traits or primary features of
the use of a building or land as evidenced by
increased parking requirements , change in
occupancy designation, change in outside
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storage , or other features occur after the
• effective date of this Ordinance . Use cf a
building or land shall refer to the primary
or specific purpose for which the building or
land is occupied, designed, intended or
maintained.
2 Landscaping Regulations :
(A) General Provisions :
1 . Landscaped Areas : Landscaped areas may
include trees , shrubs , vegetative, organic
and inorganic ground cover and other organic
and inorganic materials , excluding paving
materials for vehicular access , as identified
in an approved landscaped plan.
2 . Trees : Trees , where required by this
Ordinance shall be a minimum size as
specified below:
(a) Fifteen ( 15 ) gallon trees shall have a
minimum trunk height of six ( 6 ) feet ,
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wit: a minimum one ( 1 ) inch caliper
measured one foot ( 1 ' ) from the base of
the tree. Multi-trunk trees may have
smaller average caliper measurements.
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(b) Twenty four ( 24 ) inch box trees are
defined as full-bodied trees with a
shape characteristic of the species and
with a minimum size of ten ( 10) feet in
height, six ( 6 ) feet in width with a two
( 2 ) inch single trunk caliper or one ( 1 )
inch average trunk caliper for multiple
trunk trees or an eight foot ( 8 ' ) trunk
height for palms .
Nondeciduous trees shall be used when
screening adjacent properties .
(d) Required trees shall be a minimum
fifteen ( 15 ) gallon size with fifty
percent ( 50% ) of the required number to
be twenty-four ( 24 ) inch box size or
larger .
3 . Shrubs , where required by this Ordinance ,
shall have a minimum mature growth height of
eighteen ( 18 ) inches . At least fifty percent
( 50% ) of the shrubs required under this
Section shall be a minimum of five ( 5 ) gallon
in size upon installation, but in no case
shall any shrub be less than one ( 1 ) gallon
in size .
4 . Ground Cover: Ground cover, where required
by this Ordinance , may be of two ( 2 ) types :
( a ) Vegetative ( organic ) ground cover
consisting of living plant materials
characterized by horizontal , as well as
vertical growth, which generally does
not exceed eighteen ( 18 ) inches in
height .
(b) Organic or inorganic ground cover which
is used to landscape areas not covered
with vegetative material consisting of
gravel, decomposed granite, crushed
rock, bark chips, or other approved
materials .
2 . An irrigation system shall be provided to all
landscaped areas containing living plant
materials, unless otherwise approved.
3 . Lack of maintenance as above described, shall
constitute a violation of this Ordinance.
The property owner and/or occupant or lessee
shall be held jointly and severally liable
for any infraction of the requirements set
forth in this Chapter.
3 Screening Regulations:
(A) General Provisions :
1 . walls , fences , landscaping, or other
screening devices , are required for screening
of activities including mechanical equipment ,
refuse areas , adjacent developments , service
bays , drive through windows , parking and
maneuvering areas , and outdoor storage, from
adjacent property and public streets.
2 . The height of screening devices , shall be
measured from the highest , finished, adjacent
grade of the element to be screened.
3 . Screening devices , required by this Chapter
shall be of masonry construction or earthen
berm except for screening of roof mounted
mechanical equipment; except that a maximum
of fifty percent ( 50% ) of the required device
may be composed of live vegetation materials
equivalent in effect to the required masonry
structure along street frontages .
4 . All required screening devices shall be
architecturally compatible with the materials
and design of the site development.
5 . when adjacent to residential uses the entire
perimeter screening device along interior
property lines shall be installed in the
first phase of development .
(B) Screening Design Standards:
1 . Mechanical equipment, electrical meter and
service components , and similar utility
devices , whether ground level, wall mounted,
or roof mounted, shall be screened and
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designed to appear as an integral part of he
building.
2 . Refuse areas shall be screened with a six ( 6 )
foot masonry wall.
3 . A screening device at least six ( 6) feet in
height shall be provided along interior
property lines separating individual
development sites , except around pads in
group commercial developments or adjacent
development sites displaying common
driveways, shared parking or vehicular cross
access easements . Within the required front
yard the screening device shall not exceed a
height of three ( 3 ) feet.
4 . Loading, delivery and service bays which face
toward a public street and which are not
separated from the public street by
intervening buildings , or by a distance of at
least one hundred ( 100 ) feet shall be
screened to a height of at least six ( 6 )
feet.
5 . Vehicle lanes for drive through windows shall
be screened from a public street to a height
of at least three ( 3 ) feet.
6 . Parking areas and driving lanes adjacent to
the required front yard shall be screened to
a height of at least three ( 3 ) feet.
7 . Outdoor storage areas shall be screened from
the public street to a height of at least six
( 6 ) feet.
8 . Outdoor display of merchandise adjacent to
the required front yard shall be screened to
a height of at least three ( 3 ) feet.
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(C) Standards for Landscape Design and Development:
1 . Landscaping adjacent to public rights-of-way:
( a ) Non-arterial Street: A twenty ( 20 ) foot
wide landscaped strip shall be
established adjacent and parallel to the
frontage of a non-arterial street
measured from the future right-of-way.
(b) Arterial Street: A ten ( 10 ) foot wide
landscaped strip shall be established
adjacent and parallel to the frontage of
an arterial street measured from the
future width line, except that a fifteen
( 15 ) foot wide landscaped strip shall he
established adjacent to intersections of
arterial streets as shown in the diagram
below:
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(c ) One tree and three ( 3 ) shrubs shall be
planted in this landscaped strip for
every twenty-five ( 25 ' ) of street
frontage. Clustering of such trees an..:
shrubs is permitted, provided no tree
shall be within five ( 5 ) feet of
another. A portion of the required
crees and shrubs may be placed in the
right-of-way adjacent to the property.
(d) The slope of any earth berm shall not
exceed a vertical to horizontal ratio of
one to two ( 1 : 2 ) and shall be treated
with a suitable ground cover to prevent
soil erosion.
(e ) That portion of the required landscaped
strip not landscaped with trees, shrubs
or organic ground cover shall be
landscaped with inorganic ground cover
or other approved landscape treatment.
2 . Landscaping adjacent to interior property
_ lines :
4: J7 ( a ) A ten ( 10 ) foot wide landscaped strip
minimum shall be maintained along all
interior property lines , except around
pads in Group Commercial Developments ,
or adjacent development sites displaying
common driveways , shared parking or
vehicular cross access easements , or
between two adjacent industrial uses .
(b) A minimum of one tree and one shrub
shall be planted in this landscaped
strip for each fifteen ( 15 ) feet of
adjacent property line. Required trees
shall be planted at fifteen ( 15 ) feet on
center . Existing mature trees to be
retained may be accepted in lieu of this
requirement , if such landscaping
substantially complies with the above
requirement . Spacing must be maintained
to provide required screening. Grouping
of trees may be accomplished by
providing additional trees .
(c ) That portion of the required landscaped
strip not landscaped with trees, shrubs
or organic ground cover, shall be
landscaped with inorganic ground cover
or other approved landscape treatment.
3 . Additional landscaping within interior of
parking:
(a) For every ten ( 10 ) required parking
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spaces, or portion thereof, a minimum` of
one tree and two ( 2) shrubs shall be
provided within the interior of the
parking area. Trees located in the
interior of the parking area shall have
a clear trunk of at least five ( 5) feet
to afford adequate visibility. Shrubs
located in the interior of the parking
areas shall not exceed three ( 3 ) feet in
height.
(b) Landscaped areas shall contain a minimum
of fifty ( 50 ) square feet and shall have
a minimum average width of at least five
( 5 ) feet.
(c ) That portion of the required landscaping
in the interior of parking areas not
landscaped with trees, shrubs , or
organic ground cover, shall be
landscaped with inorganic ground cover
or other approved landscape treatment .
4 . landscaping of multiple-residence open space
areas : Multiple-residence developments shall
provide a minimum cf one tree and two ( 2 )
shrubs in the common or open space areas for
each dwelling unit.
5 . Foundation Landscaping:
(a ) Landscaping to a minimum height of
eighteen ( 18 ) inches is required
immediately adjacent to, or provided in
planter areas adjacent to , buildings
which have frontage on a public street .
(b) A minimum of fifty percent ( 50% ) of the
building frontage facing the public
street shall be landscaped.
(c) The minimum width of this landscaped
area shall be three ( 3 ) feet and shall
be designed to avoid vehicle overhang
into this area.
(D) Maintenance of Landscaping:
1 . The property owner and/or lessee shall
maintain all landscape materials and
landscaped areas in accordance with the
approved landscape plan.
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5. Irrigation Systems: Irrigation systems
required by this Ordinance shall be
underground, automatic watering systems ,
unless otherwise approved.
6. Perimeter landscaping: Required landscaped
areas adjacent to the property lines of the
site shall be installed with the first phase
of construction when adjacent to residence
districts.
7 . Landscaped areas, where required, shall be
maintained free from encroachment by any use,
structure or feature not a part of the
landscaping design.
(3) Landscaping Design Plan:
1 . When Plan Review is required by this Code as
specified in Chapter 17 , the following
information shall be shown cn the development
plans to determine compliance with this
Section.
( a ) Materials to be utilized.
(b) Location and spacing of existing and
proposed plant materials .
(c ) Size and height of all plant materials
at time of installation.
(d) Proposed treatment of all ground
surfaces .
( e ) Irrigation or watering plans .
( f ) Other such data as may assist in
determining the effects of the
development on surrounding properties .
• 2 . All development plans or landscape plans
submitted shall be reviewed and approved in
accordance with the Plan Review procedures
set forth in Chapter 17 prior to the issuance
of a Building Permit.
3 . Landscaping shall be installed with adequate
1 precautions to insure survival , as shown on
the approved development plan or landscape
plan, prior to issue of a Certificate of
Occupancy for the building or use.
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