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The Dallas City Code
CITY OF DALLAS, TEXAS CODE OF ORDINANCES
CHARTER of THE CITY OF DALLAS, TEXAS
VOLUME I
VOLUME II
VOLUME III
CHAPTER 51A DALLAS DEVELOPMENT CODE: ORDINANCE NO. 19455, AS AMENDED
ARTICLE I. GENERAL PROVISIONS.
ARTICLE II. INTERPRETATIONS AND DEFINITIONS.
ARTICLE III. DECISIONMAKING AND ADMINISTRATIVE BODIES.
ARTICLE IV. ZONING REGULATIONS.
ARTICLE V. FLOODPLAIN AND ESCARPMENT ZONE REGULATIONS.
ARTICLE VI. ENVIRONMENTAL PERFORMANCE STANDARDS.
ARTICLE VII. SIGN REGULATIONS.
ARTICLE VIII. PLAT REGULATIONS.
ARTICLE IX. THOROUGHFARES.
ARTICLE X. LANDSCAPE AND TREE CONSERVATION REGULATIONS.
ARTICLE XI. HISTORIC PRESERVATION TAX EXEMPTIONS AND ECONOMIC DEVELOPMENT INCENTIVES FOR HISTORIC PROPERTIES.
ARTICLE XII. GAS DRILLING AND PRODUCTION.
ARTICLE XIII. FORM DISTRICTS.
CHAPTER 51 FORMER DALLAS DEVELOPMENT CODE
CODE COMPARATIVE TABLE
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Division 51A-4.400. Yard, Lot, and Space Regulations.
SEC. 51A-4.401.   MINIMUM FRONT YARD.
   (a)   General provisions.
      (1)   Required front yards must be open and unobstructed except for fences and light poles 20 feet or less in height. Except as otherwise provided in this section, ordinary projections of window sills, belt courses, cornices, and other architectural features may not project more than 12 inches into the required front yard. A fireplace chimney may project up to two feet into the required front yard if its area of projection does not exceed 12 square feet. Cantilevered roof eaves and balconies may project up to five feet into the required front yard.
      (2)   The front yard setback is measured from the front lot line of the building site or the required right-of-way as determined by the thoroughfare plan for all thoroughfares, whichever creates the greater setback. On minor streets, the front yard setback is measured from the front lot line of the building site or the existing right-of-way, whichever creates the greater setback. When the city council by ordinance establishes a specific right-of-way line for a street, the front yard setback is measured from that right-of-way line.
      (3)   If a building line that is established by ordinance requires a greater or lesser front yard than prescribed by this section, the building line established by ordinance determines the minimum required front yard.
      (4)   The building official may approve a ramp that projects into the required front yard to allow a handicapped person access to an existing single family, duplex, or handicapped group dwelling unit use. The ramp must be constructed with minimal encroachment and must be constructed to the applicable accessibility standard as determined by the building official. Initial review of a complete permit application for a ramp must be completed in 10 days.
      (5)   If a lot runs from one street to another and has double frontage, a required front yard must be provided on both streets. If access is prohibited on one frontage by plat or by the city, the following structures or portions of structures in the yard along that frontage are governed by the rear yard regulations in Section 51A-4.403:
         (A)   Swimming pools.
         (B)   Game courts.
         (C)   Fences.
         (D)   Garages.
         (E)   Accessory storage buildings.
      (6)   Except as provided in this paragraph, if a blockface is divided by two or more zoning districts, the front yard for the entire blockface must comply with the requirements of the district with the greatest front yard requirement.
         (A)   If the greatest front yard is in a district with only one or more of the following uses being conducted as a main use and having a minimum of 80 feet of frontage, the blockface terminates at the boundary of that use:
            (i)   Utility and public service uses listed in Section 51A-4.212.
            (ii)   A railroad right-of-way.
            (iii)   A cemetery or mausoleum.
            (iv)   Recreation uses listed in Section 51A-4.208.
         (B)   In this section BLOCKFACE means:
            (i)    the distance along one side of a street between the two nearest intersecting streets;
            (ii)   where a street deadends, the distance along one side of a street between the nearest intersecting street and the end of the deadend street; or
            (iii)   where a street centerline contains a change of direction greater than 45 degrees, the distance along one side of a street between either the nearest intersecting street or the deadend and the point determining the angle of the change of direction.
      (7)   Reserved.
      (8)   The minimum front yard requirements in a planned development district are controlled by the planned development district regulations.
      (9)   In an A(A), multifamily, MH(A), office, retail, CS, LI, IR, IM, central area, mixed use, or multiple commercial district, the board of adjustment may allow a special exception from the front yard requirements of this section to permit the erection of a permanently constructed porte-cochere, covered walkway, or canopy if the structure is rectilinear in shape and does not exceed 25 feet in width at the building line, and if the board finds that the structure will not adversely affect neighboring property.
   (b)   Front yard provisions for residential districts.
      (1)   If a corner lot in a single family, duplex, or agricultural district has two street frontages of equal distance, one frontage is governed by the front yard regulations of this section, and the other frontage is governed by the side yard regulations in Section 51A-4.402. If the corner lot has two street frontages of unequal distance, the shorter frontage is governed by this section, and the longer frontage is governed by side yard regulations in Section 51A-4.402. Notwithstanding this provision, the continuity of the established setback along street frontage must be maintained.
      (2)   Reserved.
      (3)   If a TH or TH(A) district abuts another residential district in the same blockface and fronts on the same side of the street, the residential district with the greater front yard requirement determines the minimum front yard. The minimum front yard for the residential district with the greater front yard requirement must extend at least 150 feet into the TH or TH(A) district.
      (4)   through (7) Reserved.
   (c)   Special exception for carports.
      (1)   The board may grant a special exception to the minimum front yard requirements in this section for a carport for a single family or duplex use when, in the opinion of the board:
         (A)   there is no adequate vehicular access to an area behind the required front building line that would accommodate a parking space; and
         (B)   the carport will not have a detrimental impact on surrounding properties.
      (2)   In determining whether to grant this special exception, the board shall consider the following factors:
         (A)   Whether the requested special exception is compatible with the character of the neighborhood.
         (B)   Whether the value of surrounding properties will be adversely affected.
         (C)   The suitability of the size and location of the carport.
         (D)   The materials to be used in construction of the carport.
      (3)   Storage of items other than motor vehicles is prohibited in a carport for which a special exception has been granted under this subsection.
   (d)   Special exception for tree preservation.
      (1)   The board may grant a special exception to the minimum front yard requirements in this section to preserve an existing tree.
      (2)   In determining whether to grant this special exception, the board shall consider the following factors:
         (A)   Whether the requested special exception is compatible with the character of the neighborhood.
         (B)   Whether the value of surrounding properties will be adversely affected.
         (C)   Whether the tree is worthy of preservation.
   (e)   Schedule of minimum front yards.
      (1)   Except as provided in this section, a person shall not erect, alter, convert, or maintain a structure or part of a structure in violation of the minimum front yard requirements in the district regulations (Divisions 51A-4.100 et seq.). A schedule of minimum front yards is provided in Section 51A-4.410. (Ord. Nos. 19455; 19786; 20236; 21186; 21290; 22053; 26531; 30895; 30932)
SEC. 51A-4.402.   MINIMUM SIDE YARD.
   (a)   General provisions.
      (1)   Required side yards must be open and unobstructed except for fences and light poles 20 feet or less in height. Except as otherwise provided in this section, ordinary projections of window sills, belt courses, cornices, and other architectural features may not project more than 12 inches into the required side yard. A fireplace chimney may project up to two feet into the required side yard if its area of projection does not exceed 12 square feet. Roof eaves may project up to three feet into the required side yard. Balconies may not project into the required side yard.
      (2)   The side yard setback is measured from the side lot line of the building site, except when a front yard is treated as a side yard, the setback is measured from the lot line or the required right-of-way as determined by the thoroughfare plan for all thoroughfares, whichever creates the greater setback. On minor streets, the setback is measured from the lot line or the existing right-of-way, whichever creates the greater setback.
         (A)   When city council by ordinance establishes a specific right-of-way line for a street, the required setback is measured from that right-of-way line.
      (3)   Reserved.
      (4)   A unitary air conditioning unit may be located in the required side yard, but not nearer than three feet to the property line.
      (5)   The building official may approve a ramp that projects into the required side yard to allow a handicapped person access to an existing single family, duplex, or handicapped group dwelling unit use. The ramp must be constructed with minimal encroachment and must be constructed to the applicable accessibility standard as determined by the building official. Initial review of a complete permit application for a ramp must be completed in 10 days.
   (b)   Side yard provisions for residential districts.
      (1)   In a single family district, one required side yard may be reduced below the setback required in this section, if the other side yard is increased to at least double the side yard required in this section, subject to the following conditions:
         (A)   The minimum side yard between structures on contiguous lots must not be less than the minimum side yard required in this section.
         (B)   To reduce the required side yard, a subdivision plat must be approved by the commission and filed with the county clerk showing the location of all building lines, and showing the proposed distances between the building lines and property lines, streets lines and alley lines.
         (C)   A person may not erect an accessory structure except for a swimming pool and its appurtenances in the double side yard.
      (2)   Reserved.
      (3)   In a residential district, a person need not provide a side yard setback for a structure accessory to a residential use, including a generator, if the structure:
         (A)   does not exceed 15 feet in height; and
         (B)   is located in the rear 30 percent of the lot.
Note: This paragraph does not apply to a front yard governed by the side yard regulations in Section 51A-4.402 (such as a front yard treated as a side yard on a corner lot).
   (c)   Special exception for carports.
      (1)   The board may grant a special exception to the minimum side yard requirements in this section for a carport for a single family or duplex use when, in the opinion of the board, the carport will not have a detrimental impact on surrounding properties.
      (2)   In determining whether to grant this special exception, the board shall consider the following factors:
         (A)   Whether the requested special exception is compatible with the character of the neighborhood.
         (B)   Whether the value of surrounding properties will be adversely affected.
         (C)   The suitability of the size and location of the carport.
         (D)   The materials to be used in construction of the carport.
      (3)   Storage of items other than motor vehicles is prohibited in a carport for which a special exception has been granted under this subsection.
   (d)   Special exception for child or adult care facilities. The board may grant a special exception to the minimum side yard requirements in this section for an accessory structure used for outdoor recreation, when in the opinion of the board, the special exception will not adversely affect neighboring properties.
   (e)   Special exception for tree preservation.
      (1)   The board may grant a special exception to the minimum side yard requirements in this section to preserve an existing tree.
      (2)   In determining whether to grant this special exception, the board shall consider the following factors:
         (A)   Whether the requested special exception is compatible with the character of the neighborhood.
         (B)   Whether the value of surrounding properties will be adversely affected.
         (C)   Whether the tree is worthy of preservation.
   (f)   Schedule of minimum side yards. Except as provided in this section, a person shall not erect, alter, convert, or maintain a structure or part of a structure in violation of the minimum side yard requirements in the district regulations (Divisions 51A-4.100 et seq.). A schedule of minimum side yards is provided in Section 51A-4.410.
(Ord. Nos. 19455; 20236; 21186; 21290; 22053; 30895; 32659)
SEC. 51A-4.403.   MINIMUM REAR YARD.
   (a)   General provisions.
      (1)   Required rear yards must be open and unobstructed except for fences. Except as otherwise provided in this section, ordinary projections of window sills, belt courses, cornices, and other architectural features may not project more than 12 inches into the required rear yard. A fireplace chimney may project up to two feet into the required rear yard if its area of projection does not exceed 12 square feet. Roof eaves may project up to three feet into the required rear yard. Balconies may not project into the required rear yard.
      (2)   The rear yard setback is measured from the rear lot line of the building site.
      (3)   Reserved.
      (4)   The building official may approve a ramp that projects into the required rear yard to allow a handicapped person access to an existing single family, duplex, or handicapped group dwelling unit use. The ramp must be constructed with minimal encroachment and must be constructed to the applicable accessibility standard as determined by the building official. Initial review of a complete permit application for a ramp must be completed in 10 days.
   (b)   Rear yard provisions for residential districts.
      (1)   Reserved.
      (2)   In a residential district, a person need not provide a full rear yard setback for a structure accessory to a residential use, including a generator, if the structure does not exceed 15 feet in height. Where the rear yard is adjacent to an alley, a three-foot setback must be provided. Where the rear yard is not adjacent to an alley, no setback is required.
   (c)   Special exception for child or adult care facilities. The board may grant a special exception to the minimum rear yard requirements in this section for an accessory structure used for outdoor recreation, when in the opinion of the board, the special exception will not adversely affect neighboring properties.
   (d)   Special exception for tree preservation.
      (1)   The board may grant a special exception to the minimum rear yard requirements in this section to preserve an existing tree.
      (2)   In determining whether to grant this special exception, the board shall consider the following factors:
         (A)   Whether the requested special exception is compatible with the character of the neighborhood.
         (B)   Whether the value of surrounding properties will be adversely affected.
         (C)   Whether the tree is worthy of preservation.
   (e)   Schedule of minimum rear yards.
      (1)   Except as provided in this section, a person shall not erect, alter, convert, or maintain a structure or part of a structure in violation of the minimum rear yard requirements in the district regulations (Divisions 51A-4.100 et seq.). A schedule of minimum rear yards is provided in Section 51A-4.410. (Ord. Nos. 19455; 20236; 20440; 22053; 30895; 32659)
SEC. 51A-4.404.   MINIMUM LOT AREA FOR RESIDENTIAL USE.
   (a)   General provisions.
      (1)   A person shall not reduce a lot below the minimum area requirements of this section, unless:
         (A)   the lot is replatted for a community unit development; or
         (B)   the city or other governmental agency reduces the lot size by widening an abutting street. In this situation the minimum lot area is computed on the basis of the original lot size before the street widening.
      (2)   The area requirements in a planned development district are controlled by the planned development district regulations.
   (b)   Reserved.
   (c)   Schedule of minimum lot area for residential use.
      (1)   Except as otherwise provided in this section, a person shall not erect, alter, or convert any residential structure or part of a structure to have a smaller lot area than is allowed in the district regulations (Divisions 51A-4.100 et seq.). A schedule of minimum lot area for residential use is contained in Section 51A-4.410. (Ord. 19455)
SEC. 51A-4.405.   MINIMUM LOT WIDTH FOR RESIDENTIAL USE.
   (a)   General provisions.
      (1)   A person may not reduce a lot below the minimum width requirements of this section, unless:
         (A)   the lot is platted for a community unit development; or
         (B)   the city or other governmental agency reduces the lot size by widening an abutting street. In this situation the minimum lot width is computed on the basis of the original lot size before widening.
      (2)   The lot width requirements in a planned development district are controlled by the planned development district regulations.
   (b)   The minimum lot width for residential use is 10 feet. (Ord. Nos. 19455; 24731)
SEC. 51A-4.406.   MINIMUM LOT DEPTH FOR RESIDENTIAL USE.
   (a)   General provisions.
      (1)   A person may not reduce a lot below the minimum depth requirements of this section, unless:
         (A)   the lot is platted for a community unit development; or
         (B)   the city or other governmental agency reduces the lot size by widening an abutting street. In this situation the minimum lot depth is computed by the original lot size before the street widening.
      (2)   The depth requirements in a planned development district are controlled by the planned development district regulations.
   (b)   The minimum lot depth for residential use is 10 feet. (Ord. Nos. 19455; 24731)
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