In any district other than an NC, C-3, or Mixed Use District in which a floor area ratio limit applies, the following premiums, where applicable, may be added to the basic floor area ratio limit to determine the maximum floor area ratio for a building or development:
(a) For a lot or portion thereof which is defined by this Code as a corner lot, a floor area premium may be added by increasing the area of the lot or portion, for purposes of floor area computation, by 25 percent;
(b) For a lot or portion thereof which is defined by this Code as an interior lot, and which abuts along its rear lot line upon a street or alley, a floor area premium may be added by increasing the depth of the lot or portion along such street or alley, for purposes of floor area ratio computation, by one-half the width of such street or alley or 10 feet, whichever is the lesser.
(Amended by Ord. 443-78, App. 10/6/78; Ord. 69-87, App. 3/13/87; Ord. 131-87, App. 4/24/87)