§ 159.25  (TH) TOWNHOUSE RESIDENTIAL DISTRICT.
   (A)   Purpose.
      (1)   The Townhouse Residential District is established to provide adequate space and site diversification for residential development that is single-family, on separate lots, and typically owner occupied.
      (2)   The zone recognizes the difference between single-family detached and single-family attached dwelling units, and has adjusted the area requirements accordingly.
      (3)   Areas zoned for this use shall have or provide for water and fire protection, wastewater, drainage, access to paved streets, and adequate open space should be met or provided for before zoning to this district.
      (4)   Townhouse developments must be properly buffered from nonresidential usage and protected from high volumes of non-single family traffic, or from pollution and/or environmental hazards.
   (B)   Permitted uses.
      (1)   Agricultural uses on unplatted land, in accordance with all other adopted ordinances;
      (2)   One single-family detached dwelling (other than zero lot line detached dwellings) shall meet the area requirements of division (E) below; and one single-family detached zero-lot line dwelling shall meet the area requirements of division (F) below;
      (3)   Townhouses, attached; or patio homes, detached, with fire walls and zero-lot line;
      (4)   Temporary real estate sale offices located on property being sold, limited to the period of sale of the lots with a two-year initial period and a one-year extension being authorized by the Planning and Zoning Commission, such sales offices to be maintained at all times; and
      (5)   One accessory building not larger than 120 square feet of floor area nor taller than ten feet in height, used as an accessory to a residential use on the same lot.
   (C)   Conditional uses (require use permits, see § 159.43).
      (1)   Associated recreation and/or community clubs;
      (2)   Facilities for those utilities holding a franchise in the city;
      (3)   Paved parking facility for nonresidential uses that are not allowed in this district provided they are properly screened, buffered, and landscaped;
      (4)   Mobile construction offices;
      (5)   Private residential tennis court used as an accessory to a residential use if not located on the same lot or utilizing lights;
      (6)   A driveway or crosswalk way, as distinct from a dedicated street, to provide access to premises in a commercial or industrial district;
      (7)   Agricultural use; and
      (8)   Day care center and day nursery.
   (D)   Prohibited uses.
      (1)   Any building erected or land used for other than one or more of the preceding specified uses;
      (2)   The storage of equipment, material, or vehicles, including abandoned vehicles, which are not necessary to the uses permitted in this district; and
      (3)   Any use of property that does not meet the required minimum lot size; front, side, and rear yard dimension and/or lot width.
   (E)   Area requirements.
      (1)   Single-family dwellings (other than zero-lot line detached dwellings) and duplexes shall meet the area requirements of this division (E);
      (2)   Minimum lot area: 10,000 square feet;
      (3)   Maximum number of single-family attached dwelling units per lot: two;
      (4)   Minimum square footage per dwelling unit: the first floor of each attached dwelling unit shall contain at least 1,200 square feet of enclosed living space;
      (5)   Minimum lot frontage on a public street: 80 feet;
      (6)   Minimum lot depth: 100 feet;
      (7)   Minimum depth of front setback: 30 feet;
      (8)   Minimum depth of rear setback: 25 feet;
      (9)   Minimum width of side setback:
         (a)   Abutting structures separated by fire retardant walls: 0 feet;
         (b)   Internal lot: 20 feet; and
         (c)   Side yard setback abutting street and arterial: 30 feet.
      (10)   Minimum separation between attached buildings: every 250 feet there shall be a minimum of 20 feet between buildings;
      (11)   Minimum distance between buildings on the same lot or parcel of land: 20 feet;
      (12)   Minimum length of driveway pavement from the public right-of-way from R.O.W. line to building line or 20 feet whichever is greater;
      (13)   Maximum height of structures: 35 feet;
      (14)   Maximum building coverage as a percentage of lot area: 45%;
      (15)   Minimum amount of permanent, landscaped open space: 10% of total lot;
      (16)   Minimum number of off-street parking spaces required for:
         (a)   One single-family attached or detached dwelling unit:
            1.   Rear or side entry garage: two spaces; and
            2.   Front entry garage: two spaces. An enclosed garage shall not be considered in meeting the off-street parking requirements.
         (b)   All other uses: see §§ 159.60 through 159.68.
      (17)   All common walls shall be constructed of masonry or other fireproof material of ten-inch minimum thickness and extended from the finished floor level to two feet above the roof line.
   (F)   Area requirements; zero-lot line.
      (1)   The zero-lot line Townhome District is an obsolete, inactive district with legal nonconforming status. The city may not accept zoning applications for this district. Legal nonconforming structures in this district are subject to the regulations herein, which are retained in this code for enforcement purposes.
      (2)   Single-family zero-lot line detached dwellings shall meet the area requirements of this division (F);
      (3)   Lot area and density:
         (a)   Minimum lot area: 6,000 square feet; and
         (b)   Maximum density: no more than five dwelling units per acre.
      (4)   Minimum square footage per dwelling unit: the floor of each dwelling unit shall contain at least 1,500 square feet of enclosed living space;
      (5)   Minimum lot frontage on a public street, as measured at the platted front building line: 50 feet;
      (6)   Minimum lot depth as measured perpendicularly to the center point of the platted front building line: 90 feet;
      (7)   Minimum depth of front setback: 20 feet;
      (8)   Minimum depth of rear setback:
         (a)   Main building: 15 feet; and
         (b)   Accessory use: five feet. For a swimming pool: an additional one foot for every one foot of pool depth in excess of five feet.
      (9)   Minimum width of side setback:
         (a)   Zero lot line abutting adjacent side yard:
            1.   Main building, one side: zero feet; and
            2.   Accessory use: five feet. For a swimming pool: an additional one foot for every one foot of pool depth in excess of five feet.
         (b)   Internal lot:
            1.   Main building: side opposite zero setback: ten feet; and
            2.   Accessory use: five feet. For a swimming pool: an additional one foot for every one foot of pool depth in excess of five feet.
         (c)   Abutting street and arterial: 20 feet.
      (10)   Minimum length of driveway pavement from the public right-of-way or rear alley right-of-way: 20 feet;
      (11)   Maximum building coverage as a percentage of lot area: 50%;
      (12)   Maximum height of structure: 36 feet; and
      (13)   Minimum number of off street parking spaces:
         (a)   Rear or side entry: two spaces;
         (b)   Front entry garage: two spaces (an enclosed garage shall not be considered in meeting the off-street parking requirement); and
         (c)   All other uses: see §§ 159.60 through 159.68.
(2005 Code, § 12-2-6)  (Ord. 941006A, passed - -; Ord. 000323C, passed - -; Ord. 000615, passed - -; Ord. 010419, passed - -; Ord. 010419D, passed - -; Ord. 181211B, passed 12-11-2018)