PD 621 Old Trinity and Design SPD
PROPERTY LOCATION AND SIZE
CREATION OF SUBDISTRICTS - 1, 1A, 1B, 2.
Required Tree Species
1, 1A, 1B - 1:25', within 50' of street curb.
2 - 1:50', within 50' of street curb
PARKWAY LICENSE AND PERMIT
SUBDISTRICTS 1, 1A, 1B
ARTICLE X, except
Parking Lot Buffer
Trigger - other than Article X
Points System - does not replace Article X design standards.
Open Space Fund - landscaping fund
ARCHITECTURAL DESIGN GUIDELINES
SITE DESIGN REQUIREMENTS
Mandatory screening removes Article X screening design standard.
Abridged ordinance for understanding landscaping and site design elements.
SEC. 51P-621.101. LEGISLATIVE HISTORY.
PD 621 was established by Ordinance No. 25013, passed by the Dallas City Council on August
28, 2002. (Ord. 25013)
SEC. 51P-621.102. PROPERTY LOCATION AND SIZE.
PD 621 is established on property generally bounded by Sylvan Avenue/Wycliff Avenue on the
northwest, the meanders of the old channel of the Trinity River on the north, Interstate 35 on the east,
Continental Avenue on the south, and the Trinity River Floodway on the west. The size of PD 621 is
approximately 415.13 acres. (Ord. Nos. 25013; 25560; 27006)
SEC. 51P-621.102.1. CREATION OF SUBDISTRICTS.
(a) Name. This special purpose district is to be known as the Old Trinity and Design District
Special Purpose District.
(b) Creation of subdistricts.
(1) This special purpose district is divided into four subdistricts. Exhibit 621A
describes the boundaries of each subdistrict. The map labelled Exhibit 621B shows the boundaries of each
subdistrict. In case of a conflict, the verbal description in Exhibit 621A controls over the map in Exhibit
(2) Subdistricts 1, 1A, and 1B are transit-oriented, mixed-use zoning district for the
development of combinations of medium-density residential, retail, and office uses. Development should
encourage residential, retail, office, and lodging uses in compatible combinations within walking distance
of DART light-rail stations; conserve energy; provide for efficient traffic circulation; conserve land;
minimize vehicular travel; encourage both day-time and night-time activity; encourage use of mass
transit; increase pedestrian activity; and encourage bicycle usage. Subdistricts 1, 1A, and 1B retain the
potential for limited industrial and warehouse uses.
(3) Subdistrict 2 is for MU-3 Mixed Use District uses, bus or rail transit vehicle
maintenance or storage facility uses, and commercial bus station and terminal uses. (Ord. Nos. 25013;
26975; 27006; 27280)
(5) CANOPY TREE means a species of tree that normally bears crown foliage no
lower than six feet above ground upon maturity.
(8) MAJOR MODIFICATION means reconstruction, alteration, or renovation of an
original building that exceeds 50 percent of the value of the original building assessed by the Dallas
Central Appraisal District or any increase in the floor area of an original building if the expansion is over
50 percent for nonresidential projects, over 65 percent for mixed use projects, and over 75 percent for
(17) RAILBEDS means the areas shown on the map labelled Exhibit 621D.
SEC. 51P-621.112. LANDSCAPING.
(a) General requirements applicable to all subdistricts.
(1) Required tree species. All required trees must be from the following list of Texas
Scientific name Common name
Aesculus glaba v. arguta Texas buckeye
Aesculus pavia Red buckeye
Bumelia lanuginosa Woolly-bucket bumelia
Carya illinoinensis Pecan
Carya texana Black hickory
Cercis canadensis v. Canadensis Eastern redbud
Diospyros virginiana Common persimmon
Ilex decidua Deciduous holly
Ilex vomitoria Yaupon holly
Juglans nigra Black walnut
Juniperus virginiana Eastern red cedar
Morus rubra Red mulberry
Myrica cerifera Wax myrtle
Prunus mexicana Mexican plum
Quercus macrocarpa Bur oak
Quercus marilandica Blackjack oak
Quercus shumardii Shumard red oak
Quercus stellata Post oak
Quercus virginiana Live Oak
Rhamnus caroliniana Carolina buckthorn
Rhus copallina Flameleaf sumac
Rhus virens Evergreen sumac
Sapindus drummondii Western soapberry
Sophora affinis Eve's necklace
Taxodium distichum Bald cypress
Ulmus americana American elm
Ulmus crassifolia Cedar elm
Viburnum rufidulum Rusty blackhaw viburnum
Zanthoxylum clavaherculis Hercules' club
(2) Prohibited trees.
(A) The following trees may not be planted within this special purpose
Scientific name Common name
Populus deltoides Cottonwood
Albizia julbrissen Mimosa
(B) Bradford pears (pyrus calleryana) may be planted as site trees. Bradford
pears may not be used as street trees, used as landscape buffer trees, or planted in the public right-of-way.
(3) Street trees.
(A) In Subdistricts 1, 1A, and 1B, one street tree must be provided per 25
feet of street frontage, with a minimum of one street tree per building site. In Subdistrict 2, one street tree
must be provided per 50 feet of street frontage, with a minimum of one street tree per building site.
(B) Street trees must be located on the building site within 50 feet of the
projected street curb, except that street trees may be located in the public right-of-way if all private
licensing requirements of the city code and charter are met and a right-of-way landscape permit is
obtained from the city. For purposes of this subparagraph, “projected street curb” means the future
location of the street curb consistent with the City of Dallas Thoroughfare Plan as determined by the
director of public works and transportation.
(C) Street trees must be provided for all new construction.
(4) Landscaping in the public right-of-way.
(A) Landscaping may be located in the public right-of-way if a right-of-way
landscape permit is obtained from the city.
(B) Plants in the public right-of-way may not obstruct visibility or create a
traffic hazard. See Section 51A-4.602(d), “Visual Obstruction Regulations.”
(C) The city council hereby grants a non-exclusive revocable license to the
owners or tenants (with written consent of the owner) of all property within this special purpose district
for the exclusive purpose of authorizing compliance with the landscaping requirements of this special
purpose district. An owner or tenant is not required to pay an initial or annual fee for this license,
although a fee may be charged for issuance of a right-of-way landscape permit in accordance with the
Dallas Building Code. This private license will not terminate at the end of any specific time period;
however, the city council reserves the right to terminate this license at will, by resolution passed by the
city council, at any time such termination becomes necessary. The determination by the city council of the
need for termination is final and binding. The city shall become entitled to possession of the licensed area
without giving any notice and without the necessity of legal proceedings to obtain possession when, in its
judgment, the purpose or use of the license is inconsistent with the public use of the right-of-way or when
the purpose or use of the license is likely to become a nuisance or threat to public safety. Upon
termination of the license by the city council, each owner or tenant shall remove all improvements and
installations in the public rights-of-way to the satisfaction of the director of public works and
(D) A property owner or tenant is not required to comply with any right-ofway landscaping requirement
to the extent that compliance is made impossible due to the city council’s
revocation of a right-of-way landscape permit or the revocation of the private license granted under this
(E) Upon the installation of landscaping in the public right-of-way, the
owners or tenants shall procure, pay for, and keep in full force and effect commercial general liability
insurance coverage with an insurance company authorized to do business in the State of Texas and
otherwise acceptable to the city, covering, but not limited to, the liability assumed under the private
license granted under this subsection, with combined single limits of liability for bodily injury and
property damage of not less than $1,000,000 for each occurrence, and $2,000,000 annual aggregate.
Coverage under this liability policy must be on an occurrence basis and the city shall be named as
additional insured. Proof of such insurance must be sent to: Office of Risk Management, City of Dallas,
1500 Marilla, Dallas, Texas 75201, and the policy must provide for 30 days prior written notice to the
Office of Risk Management of cancellation, expiration, non-renewal, or material change in coverage. All
subrogation rights for loss or damage against the city are hereby waived to the extent that they are
covered by this liability insurance policy.
(F) Each owner or tenant is responsible for maintaining the landscaping in a
healthy, growing condition, and for keeping the premises safe and in good condition and repair, at no
expense to the city, and the city is absolutely exempt from any requirements to make repairs or maintain
the landscaping. The granting of a license for landscaping under this subsection does not release the owner
or tenant from liability for the installation or maintenance of trees and landscaping in the public
(5) Visual obstruction regulations.
A property owner is not required to comply with
the landscaping requirements of this section to the extent that compliance is made impossible by
Subsection (d), “Visual Obstruction Regulations,” of Section 51A-4.602, “Fence, Screening, and Visual
(1) General requirement.
Except as otherwise provided in this section, landscaping
must be provided as required by Article X.
(2) Landscaping in railbeds.
(A) Any landscaping planted in the area to the centerline of a railbed may be
used to satisfy required landscaping for the adjacent property. Landscaping planted in a railbed may not
be located in an access easement.
(B) The requirements of Section 51A-10.125(b)(5), “Parking Lot Trees,” do
not apply to parking located within a railbed.
(3) Parking lot buffer.
A five-foot-wide landscaped strip must be located along any
edge of a parking lot or parking structure that is visible at grade level from a street. A minimum three inch-caliper tree
must be located every 15 feet, or fraction thereof, or clustered every 30 feet within the landscaped strip.
(4) Plant requirements.
Plants used to satisfy the landscape requirements must
comply with the following requirements:
(A) A large evergreen shrub must have the ability to grow to a minimum
height of three feet within three years.
(B) Solid sod or hydro-mulch grass may be used.
(C) Artificial plant materials may not be used.
(D) Any required landscaping that dies must be replaced.
(5) Landscape plan.
A landscape plan must accompany any application for a
building permit to expand floor area if the expansion is over 50 percent for nonresidential projects, over
65 percent for mixed use projects, or over 75 percent for residential projects. A landscape plan must earn
at least 50 points (out of a total of 155 possible points.) The points awarded for providing these features
are provided in parentheses. Existing landscaping qualifies for points.
(A) Lighting. (Total possible points = 20) Ten points each are awarded for
providing tree lighting, light bollards, light poles, building facade lighting, or landscaped area lighting, up
to a maximum of 20 points. The lighting provided must be at least 1.5 foot-candles in intensity over
adjacent pedestrian areas.
(B) Landscaping on rooftops and facades. (Total possible points = 30) Ten
points each are awarded for large planters, hanging planters, exterior embedded or extended planters, and
vine supports on rooftops or along front facades up to a maximum of 30 points. Vines within ground-based planters
must be able to extend above one-half the total height of the ground story of the main structure.
(C) Landscape buffer. (Total possible points = 25) The landscape buffer
must be a minimum of 80 square feet. A mix of plant materials may be used.
(D) Tree canopy at the street frontage. (Total possible points = 20) Points
may be obtained for planting canopy trees along the entire street frontage, exclusive of vehicular and
pedestrian entrances and exits. The trees may be planted in the right-of-way if a right-of-way landscape
permit is obtained. Ten points are awarded for planting these trees at a density of one tree per 30 linear
feet of street frontage and 20 points are awarded for planting these trees at a density of one tree per 15
linear feet of street frontage. Note: Power lines may affect the types of trees used.
(E) Seasonal color landscaping. (Total possible points = 20) Points may be
obtained for providing a landscape area for seasonal color in planting beds, raised planters, or pots. Five
points are awarded for a landscape area that is equal to at least one-fourth of a square foot multiplied by
the number of feet of street frontage. Ten points are awarded for a landscape area that is equal to at least
one-half of a square foot multiplied by the number of feet of street frontage. Fifteen points are awarded
for a landscape area that is equal to at least three-fourths of a square foot multiplied by the number of feet
of street frontage. The plants in the landscape area must be changed at least twice per year with the
appropriate seasonal color plants. This area must contain the appropriate seasonal landscaping at all times
except when the landscaping is being changed at the beginning of a new season.
(F) Native plant landscaping. (Total possible points = 20) Points may be
obtained for providing a landscape area containing native plants. Five points are awarded for a landscape
area that is equal to at least one-fourth of a square foot multiplied by the number of feet of street frontage.
Ten points are awarded for a landscape area that is equal to at least one-half of a square foot multiplied by
the number of feet of street frontage. Fifteen points are awarded for a landscape area that is equal to at
least three-fourths of a square foot multiplied by the number of feet of street frontage. Native plants listed
in Exhibit 621E must be used.
(G) Creation of open space. (Total possible points = 20) Five points are
awarded per 200 square feet of open space if the open space is a minimum of 500 feet from the building
site but within this special purpose district. For purposes of this subparagraph, “open space” means a
space containing no structures or pavement at or above grade, and containing only grass or other
vegetation. Open space must be available for use by the public. The open space must be maintained in a
state of good repair and neat appearance at all times by the owner of the property for which the building
permit was issued.
(6) Open space fund.
If a property owner in Subdistricts 1, 1A, and 1B cannot plant
all of the required trees on the building site, the property owner shall comply with the following
requirements for no more than 50 percent of the required trees:
(A) Make a payment into the Old Trinity and Design District Open Space
Fund. The department shall administer a city account to be known as the Old Trinity and Design District
Open Space Fund. Funds from the Old Trinity and Design District Open Space Fund must be used only
for acquiring and maintaining property for parks and open-space within this special purpose district. The
amount of the payment required per tree not planted is calculated by using the formula for appraising the
value of a two-inch-caliper tree, as derived from the most recent edition of the Guide for Establishing
Values of Trees and Other Plants published by the Council of Tree and Landscape Appraisers, unless
another publication is designated by the building official, and adding the cost of planting and maintaining
a two-inch tree for two years.
(B) Plant trees within:
(i) portals to the Trinity River (as identified in the Trinity River
Corridor Comprehensive Land Use Plan) within this special purpose district,
(ii) along that portion of the Old Trinity Trail within this special
purpose district, or
(iii) along the meanders of the Old Trinity River channel, as shown
on Exhibit 621C.
(7) Parking/landscaping zone.
Where there is at least a 70-foot space between
buildings, a parking/landscaping zone meeting the following requirements is allowed in the space
between the two buildings, but is not required. The composition of the parking/landscaping zone, moving
from one building façade across to the other building façade, is as follows:
(A) First, a minimum six-foot-wide sidewalk parallel to the façade of the first
(B) Second, a parking area between six feet from the first building façade to
16 feet from the first building façade. This parking area must have angled head-in parking at an angle of
60 degrees to 90 degrees. A landscaped area containing one tree must be located between every fifth
parking stall. Trees in the parking area must be spaced 46 to 50 feet on center, and must be 12 to 16 feet
away from the first building façade. One parking stall may be omitted to allow for a loading dock to
(C) Third, a minimum of 26 feet of right-of-way for the two-way traffic in
(D) Fourth, a matching parking area from between 16 feet from the second
building façade to six feet from the second building façade.
(E) Fifth, a matching six-foot-wide sidewalk parallel to the façade of the
(c) Subdistrict 2.
Except as otherwise provided in this section, all properties in Subdistrict 2 must comply with Article X. (Ord. Nos. 25013; 25560; 26975; 27280)
These additional sections are provided to give a rounded explanation of the site improvements for construction.
End of Landscaping
SEC. 51P-621.113. ARCHITECTURAL DESIGN GUIDELINES.
The architectural design guidelines of this section are intended to preserve the
historical, cultural, and architectural importance and significance of Subdistricts 1, 1A, and 1B. These
architectural design guidelines are intended to encourage adaptive reuse of existing buildings; new
contemporary and creative construction and major modifications that will enhance the architectural
character of the district; and sustainable, green, energy efficient design and construction.
(b) Facade requirements for new construction and major modifications in Subdistricts 1, 1A, and 1B.
(1) Facades must be brick, concrete masonry, glass, hollow tile, stone, or other
fireproof materials, except that wooden siding, wooden sheets, and metal may not be used on more than
50 percent of any facade.
(2) Facades consisting of more than 80 percent glass, excluding glass block, are
(3) The maximum permitted reflectance of glass used as a facade material varies
depending on where the glass is used. The reflectance of glass used on the first two stories may not
exceed 15 percent. The reflectance of glass used above the first two stories may not exceed 27 percent.
Reflectance is the percentage of available visible light energy reflected away from the exterior surface of
the glass. The higher the percentage, the more visible light reflected and the more mirror-like the glass
(c) Design test requirements in Subdistricts 1, 1A, and 1B.
New construction or a major modification must earn at least 50 points for properties with a floor area ratio of 2.0 or less, and at least 70
points for properties with floor area ratios greater than 2.0 (out of 205 possible points). The total possible points in any category are provided in parentheses.
(1) Maintenance of original facades. (Total possible points = 10) Ten points are
awarded for the adaptive reuse of an original building if its original facade design elements are not
(2) Ground floor uses, building facades, and roofs. (Total possible points = 20)
Points may be earned as follows:
(A) Retail and showroom uses. Ten points are awarded if a building’s
ground floor (excluding halls, restrooms, utility areas, and other public spaces) is allocated to retail and
personal service uses or office showroom/warehouse uses.
(B) Restaurant uses. Ten points are awarded if a building’s ground floor
(excluding halls, restrooms, utility areas, and other public spaces) includes restaurant uses.
(C) Facade treatments. Ten points are awarded if the building’s front facade
is given texture and complexity by the inclusion of ground level entries more than 14 feet in height,
porticos, indented entries, belt coursing or other horizontal banding, grid coursing, articulation of window
openings, corner pilasters, rustication of the first floor, changes of color, or ornamental iron.
(3) Pedestrian amenities. (Total possible points = 25) Five points each are awarded
for benches, trash receptacles, awnings/canopies, bicycle parking racks, and pedestrian street lamps.
These items should be creative and contemporary. Pedestrian amenities must be located within the
curb to-building area of the building site, but, if a hardship prohibits locating these in the curb-to-building area
of the building site, the amenities may be placed within the public right-of-way as long as they meet city
standards and licensing requirements and do not block free movement of pedestrians. Pedestrian
amenities must be maintained and operated by the owner of the building site. If there is more than one
owner, all owners are jointly responsible for maintenance. Such amenities include:
(A) Benches or exterior seating areas (maximum of one every 50 feet).
(B) Trash receptacles (maximum of five points).
(C) Awnings/canopies along the front facade.
(D) One five-bicycle stand per 100 feet of street frontage.
(E) At least one pedestrian street lamp (freestanding or wall mounted) per 50
feet of street frontage.
(4) Public art or water features. (Total possible points = 15) Fifteen points are
awarded for public art or water features costing at least $2,500, limited to one per building site. In order to
qualify for public art points, the public art must be visible from a public right-of-way at all times.
Examples of public art could include art in an atrium or lobby that is visible from a public right-of-way,
art incorporated into the sidewalk or building facade, or freestanding art. For purposes of this paragraph,
“water features” means: fountains, pools, mechanical water jets, or similar water devices.
(5) Paving material. (Total possible points = 15) Five points are awarded per one third increment of an outdoor
private walkway area accessible to the public that is covered by decorative
pavement. For purposes of this paragraph, “decorative pavement” means: colored concrete pavers; brick;
stone; stamped, textured, or colored concrete; and exterior grade tile.
(6) Pedestrian orientation of building facade. (Total possible points = 20) Twenty
points are awarded if a minimum of 25 percent of the front facade has transparent display windows or
windows affording views into retail, office, or lobby space. The transparency requirement applies to the
first 16 feet of height of the facade.
(7) Structured parking facilities. (Total possible points = 50) Fifty points are
awarded for a structured parking facility if the design matches the facade of a new building or
architecturally complements the facade of an original building.
(8) Energy conservation. (Total possible points = 15) Ten points are awarded for
using solar, geothermal, or other non-petroleum, non-coal energy sources. Five points are awarded for
planting twice the number of canopy trees required by Section 51P-621.112, “Landscaping.”
(9) Permeable surface. (Total possible points = 15) Five points are awarded each
third of an outdoor walkway or driveway with a permeable surface.
(10) LEED’s credit. (Total possible points = 20) Twenty points are awarded for a
project with a floor area ratio of more than 2.0 when the project complies with the following:
(A) A United States Green Building Council’s Leadership in Energy and
Environmental Design (LEED) Checklist, effective May 1, 2004, must be submitted with an application
for a building permit for development, indicating how development will comply with a certified
designation (26 to 32 project points). The development plans submitted for a building permit must be
certified by a LEED accredited professional designated by the department of development services. Prior
to the issuance of a building permit, the building official shall determine that the project is consistent with
the standards and criteria for a LEED certified designation.
(B) If the developer is unable to achieve all of the green building rating
system points identified on the checklist, the developer must replace any points not achieved with other
green building rating system points acceptable under the United States Green Building Council’s LEED
(C) All supporting documentation and templates related to the points
previously approved by the city for the LEED certified level designation must be submitted with an
application for a certificate of occupancy. A certificate of occupancy may not be issued until a LEED
accredited professional designated by the department of development services certifies that the building
complies with the LEED certified designation (26 to 32 project points).
SEC. 51P-621.114. SITE DESIGN REQUIREMENTS.
(a) Above-grade off-street parking. Parking is permitted on any level of a building.
(b) Median and curb cuts along Industrial Boulevard. Median and curb cuts to access
railbeds for off-street parking from Industrial Boulevard, between Continental Avenue and
Sylvan/Wycliff Avenue, must be approved by the director of public works and transportation. Traffic
must be one-way from Industrial Boulevard westbound to Levee Street.
(c) Sidewalk standards for new construction.
(1) In general.
(A) Sidewalks complying with the standards of this subsection must be
provided for all new construction.
(B) If a sidewalk is to be located in a front yard, a sidewalk easement must
be dedicated to the city to assure its availability to the public for pedestrian access.
(C) Except as otherwise provided in this subsection, the requirements of
Chapter 43, “Streets and Sidewalks,” apply to all sidewalks.
(A) Sidewalks must be located along the entire length of the street frontage.
(B) On state highways, sidewalks must be provided in the parkway, subject
to Texas Department of Transportation approval. If Texas Department of Transportation approval cannot
be obtained, the property is exempt from this requirement.
(C) Sidewalks must be located between five feet and 10 feet from the back of
the projected street curb, except that sidewalks on Oak Lawn Avenue, Irving Boulevard, Market Center
Boulevard, and Turtle Creek Boulevard must be located between five feet and 12 feet from the back of
the projected street curb
. Sidewalks may be located farther from the projected street curb to the extent
necessary to preserve existing trees or structures or to comply with landscaping requirements
(A) Sidewalk widths must match the width of existing sidewalks in front of
adjacent properties at the point of convergence. Where there are different sidewalk widths on each side of
the street frontage, the new sidewalk must taper or expand to meet the incongruous sidewalks.
(B) Sidewalks must have an unobstructed minimum width of four feet,
except that sidewalks on Oak Lawn Avenue, Irving Boulevard, Market Center Boulevard, and Turtle Creek Boulevard must have
an unobstructed minimum width of six feet. For purposes of this provision, “unobstructed” means by structures or landscaping,
excluding utility poles and service boxes.
SEC. 51P-621.115. SCREENING REGULATIONS.
(a) Parking lot screening
(1) Except as otherwise provided in this section, Section 51A-4.301(f), “Screening
Provisions for Off-Street Parking,” applies to all parking lots and parking structures.
(2) Fences may complement but not substitute for parking lot trees and shrubbery
(3) The provision of screening for surface parking only applies to new construction.
All surface parking must be screened from a street or access easement by using one or more of the
following three methods to separately or collectively attain a minimum height of three feet above the
(A) Earthen berm planted with turf grass or groundcover recommended for
local area use by the director of parks and recreation. The berm may not have a slope that exceeds one
foot of height per three feet of width.
(B) A fence constructed of one or more of the following: brick, stone,
concrete masonry, stucco, concrete, wood, or other durable material. Wrought iron fences are allowed.
(C) Hedge-like evergreen plant materials recommended for local area use by
the city arborist. The plant materials must be located in a bed that is at least three feet wide with a
minimum soil depth of 24 inches. Initial plantings must be capable of obtaining a solid appearance within
three years. Plant materials must be placed 36 inches on center over the entire length of the bed unless a
landscape architect recommends an alternative planting density that the building official determines is
capable of providing a solid appearance within three years.
(b) Screening of off-street loading spaces, dumpsters, and garbage storage areas.
(1) Except as otherwise provided in this subsection, screening of off-street loading
spaces, dumpsters, and garbage storage areas must be provided in compliance with Section 51A-4.602,
“Fence, Screening, and Visual Obstruction Regulations.”
(2) All off-street loading spaces, dumpsters, and garbage storage areas must be
screened from all public streets adjacent to the building site. Screening is not required on sides that are
not visible from a public street.
(3) Screening of all off-street loading spaces, dumpsters, and garbage storage areas
must be at least six feet in height.
(4) Screening is not required in the railbeds.
(c) Outdoor storage areas. Except for vehicle display, sales, and service uses and nursery,
garden shop, and plant sales uses, all outdoor storage areas for commercial and business services uses and
industrial uses must be entirely screened by an eight-foot solid screening fence, vegetative materials, or
other alternative deemed appropriate by the building official.
(d) Exemption for Subdistrict 2. The screening regulations of this section do not apply to a
bus or rail transit vehicle maintenance or storage facility use in Subdistrict 2. (Ord. Nos. 25013; 25560)