§ 157.040 ACCESSORY BUILDINGS AND STRUCTURES.
   (A)   Residential districts.
      (1)   Location. No accessory building or structure shall be erected or located in any required yard other than the rear yard, except detached private garages may be permitted in the side yards; provided that:
         (a)   Such garage shall comply with all other requirements of this section;
         (b)   The garage shall be at least five feet from side lot lines; and
         (c)   The garage shall not be located more than 20 feet from the principal structure.
      (2)   Size and density requirements.
         (a)   Maximum density. The total area of all accessory buildings and structures shall occupy no more than 30% of the rear yard.
         (b)   Maximum number of accessory buildings. No more than two accessory buildings and no more than one detached private garage shall be permitted on a single lot, except for multi-family dwellings of four or more units.
         (c)   Maximum size. No accessory building or buildings shall exceed 1,000 square feet in total gross floor area, except for the following:
            1.   Multi-family dwellings of four or more units;
            2.   An accessory building or buildings may exceed 1,000 square feet in total gross floor area as a conditional use, subject to the provisions and procedures of § 157.099 of this chapter and provided the following conditions are met:
               a.   The total gross floor area of all accessory buildings shall not exceed 1,250 square feet for lots of more than 20,000 square feet but less than 30,000 square feet in area and 1,500 square feet for lots of 30,000 square feet or more in area;
               b.   A minimum of 20 feet shall be maintained from side and rear lot lines for individual buildings with a total gross floor area of 1,000 square feet or more;
               c.   No accessory building shall be used for commercial purposes; and
               d.   The size, design, construction and location must be such as to be compatible with the surrounding area.
            3.   The maximum height for an accessory building shall not exceed 15 feet, except detached private garages; provided that:
               a.   A ratio of two and one-half to one (2.5:1) between the height of the structure and the setback from the side and rear lines shall be maintained; and
               b.   The maximum height permitted under this section shall be 20 feet.
      (3)   Setback requirements.
         (a)   Setback from lot lines. All accessory buildings or structures shall be at least three feet from all lot lines or the setback required by Building Code, whichever is greater, except private garages with vehicular access doors facing public alleys shall be 20 feet from the alley right-of-way.
         (b)   Setback from buildings.
            1.   Permanent accessory buildings shall be at least three feet from any other permanent building on the lot; provided, all Building Code requirements are met.
            2.   Movable accessory buildings or structures can be closer than three feet from any other building or structure on the lot; provided, all Building Code requirements are met.
         (c)   Easements. No accessory building or structure shall be located within a utility easement, except movable accessory buildings or structures upon approval of the city’s public utilities and issuance of a zoning permit; provided that:
            1.   The building or structure shall be constructed on skids and anchored down as required by the Building Department;
            2.   The building or structure shall not exceed 120 square feet in gross floor area; and
            3.   The building or structure shall be removed by the property owner if required for the construction, repair or maintenance of a utility.
      (4)   Design requirements. To ensure that the design and appearance of accessory buildings are appropriate for a residential district, the following design criteria shall apply for all accessory buildings that are greater than 250 square feet in gross floor area.
         (a)   Roof shall be pitched with eaves.
         (b)   Roof shall be covered with shingles, tile, shakes or metal seam and batten roofing manufactured with a factory-applied finish, except a galvanized finish.
         (c)   Exterior walls shall have conventional house siding or siding that simulates conventional house siding or an exterior that is the same as the exterior of the principal structure.
      (5)   Use of private garages.
         (a)   No vehicle with a gross capacity of more than 9,000 pounds shall be stored within a private garage.
         (b)   Private garage space may be rented to non-residents of the property for private passenger vehicles and/or non-commercial vehicles, trailers or equipment. Rented private garage space shall be limited to 500 square feet or one- and two-car garages, whichever is greater.
   (B)   Commercial and industrial districts.
      (1)   Location. Accessory buildings or structures shall be erected or located in the rear yard, except accessory buildings or structures may be erected or located in the side yard; provided, the following conditions are met:
         (a)   Applicable side yard setbacks are met; and
         (b)   Such accessory building or structure shall be located ten feet behind the front building line of the principal structure, or maintain a front yard setback ten feet more than the front yard setback requirement of the applicable zoning district, whichever provides the greater front yard setback.
      (2)   Size and density requirements. The total gross floor area of all accessory buildings and structures shall occupy no more than 1,000 square feet or 50% of the gross floor area of the principal use, whichever is greater, except accessory buildings and structures may exceed 1,000 square feet or 50% of the gross floor area of the principal use as a conditional use, subject to the provisions and procedures of § 157.099 of this chapter; and, provided, the following conditions are met:
         (a)   All applicable setbacks are met;
         (b)   The combined lot coverage of the principal and accessory buildings or structures shall not exceed 50% of the lot; and
         (c)   The location and appearance of such accessory buildings or structures shall be compatible with the surrounding neighborhood.
      (3)   Setback requirements.
         (a)   Setback from lot lines. All accessory buildings or structures shall maintain one-half the side yard setback requirements and one-half the rear yard setback requirement of the applicable zoning district or the setback required by Building Code, whichever is greater, except accessory buildings that are no more than 1,000 square feet in total gross floor area may be three feet from all lot lines.
         (b)   Setback from buildings.
            1.   Permanent accessory buildings shall be at least three feet from any other permanent building on the lot; provided, all Building Code requirements are met.
            2.   Movable accessory buildings or structures can be closer than three feet from any other building or structure on the lot; provided, all Building Code requirements are met.
         (c)   Easements. No accessory building or structure shall be located within a utility easement, except movable accessory buildings or structures upon approval of the city’s public utilities and issuance of a zoning permit; provided that:
            1.   The building or structure shall be constructed on skids and anchored down as required by the Building Department;
            2.   The building or structure shall not exceed 120 square feet in gross floor area; and
            3.   The building or structure shall be removed by the property owner if required for the construction, repair or maintenance of a utility.
(Ord. 827, passed 4-19-1983; Ord. 1116, passed 7-18-1995; Ord. 1145, passed 8-6-1996; Ord. 1260, passed 7-2-2001; Ord. 1304, passed 1-7-2003) Penalty, see § 157.999