(A)   Where the frontage on one side of a street between two intersecting streets is divided by two or more zoning districts, the front yard shall comply with the requirements of the most restrictive district for the entire frontage.
   (B)   Where a building line has been established by plat approved by the Planning Commission or, in the case of areas annexed into the city, approved by a governmental agency having legal jurisdiction to approve such plats, and such line requires a greater or lesser front yard setback than is prescribed by these regulations for the district in which the building line is located, the required front yard shall comply with the building line so established by such plat.
   (C)   For existing through lots, a required front yard shall be provided on both streets unless a building line for accessory buildings has been established along one frontage on the plat or by ordinance, in which event only an accessory building may be built on the line thus established. The main building must observe the front yard requirements for both streets. In the case of existing through lots which are bounded on three sides by streets, all yards between the main building and a street shall be regulated as front yards unless a front, side, and rear building line have been established by plat.
   (D)   If buildings along the frontage of any street between two intersecting streets in any residential district have observed an average setback which is greater or lesser in dimension than the minimum front yard or setback established for the district in which the street frontage is located, and if no front building line has been established by plat, then the average setback of all buildings fronting upon such street between two intersecting streets shall establish the minimum front yard requirement. All vacant lots shall be assumed to have a minimum front yard specified for the district in computing the average front yard. These provisions shall not be interpreted as requiring a setback or front yard of more than ten feet greater than the front setback observed by any building on a contiguous lot. The provisions shall be superseded on any lot where a minimum building line has been established by plat or ordinance and the front yard or setback provisions of such plat or ordinance shall be observed. In all districts except CBD, the distance as measured from the front lot line to the face of the building shall in no case be less than 1/2 the height of the building.
   (E)   In residential districts, the minimum front yards specified in these regulations may be reduced by a maximum of five feet when such yards front on the bulb portion of a cul-de-sac. In no case shall the required front yard be reduced to less than 20 feet under this provision.
   (F)   Except where staggered setbacks are permitted and used, residential building lines shall be uniform for all contiguous lots along a block face. Uniform residential building lines may be altered on a block face where there is a separation of 15 feet or more between residential lots created by intersecting alleys, creeks, and public or private open space.
   (G)   Attached front accessory buildings, including garages and carports, shall have a front setback from the street or access way not less than that of the main building or 20 feet, whichever is greater. Detached accessory buildings shall be located behind the main building.
(Ord. 1568, passed 9-11-07)