Where a building line is shown on the Zone Map as an existing alignment line, the alignment of the buildings existing along such frontage shall determine the building line.
In a Class U4, U5 or U6 District, where a building line is required along both the front and side line of a corner lot, and the building thereon, as constructed, faces the front of the lot, the building line along such side line for a distance of 150 feet back from the building line at the corner shall be located five feet back from the street line in all cases where a greater distance is prescribed on the Zone Map.
On any street frontage in a Class U1, U2 or U3 District, where no building line is designated on the Zone Map, the location of the building line shall be as follows:
(a) On a street frontage on either side of a street between two intersecting streets, but excluding the frontage along the side line of a corner lot, the distance of the building line, back from the street line, shall be twenty percent of the average or normal depth of the lots having their front lines along such street frontage, but such distance back from the street line need not be more than forty feet. Where, in any portion of such street frontage, there are lots of markedly less depth than the normal, the City Planning and Zoning Commission, in defining and applying this building line regulation, may, when in its opinion the general purpose and intent of this section will be better served thereby, divide such street frontage into sections for the application of the above twenty percent building line requirements. For the purpose of this subsection the term “lot” shall include each unimproved parcel in separate ownership and unimproved lots or parcels in subdivisions of land.
(b) In a Class U1 or U2 District, along the side line of a corner lot, the distance of the building line back from the street line shall be fifteen percent of the average width of such lot, but such distance back from the street line need not be more than fifteen feet. In a Class U3 District along the side line of a corner lot, the distance of the building line back from the street line shall be twelve percent of the average width of such lot, but such distance back from the street line need not be more than twelve feet.
(Ord. 10471. Passed 9-27-54.)