(A) Each front yard in an R-1A Zone shall be not less than 20% of the average depth of the lots in the block; provided, however, in no case shall the front yard be less than 20 feet, and it need not exceed 35 feet; and provided, further, where lots comprising 25% or more of the frontage of the block are occupied by buildings, no building erected or structurally altered upon such frontage shall project beyond the average front yard line of the lots next adjacent thereto on either side. A vacant lot shall be considered for this purpose as having a front yard as provided heretofore in this section. A lot having a front yard more than 35 feet in depth shall be considered for this purpose as having a front yard 35 feet in depth.
(B) Open, unenclosed porches, platforms, or land places not covered by a roof, awning, or canopy and not surrounded by a railing, which porches, platforms, or landings do not extend above the level of the ground floor of the building, may extend or project into the front yard not more than six feet.
(C) On key lots the minimum front yard shall be the average of the required front yard for the adjoining interior lot and the required side yard along the street side of the adjoining reversed corner lot. Where existing buildings on either or both of such adjoining lots are located nearer to the street than the yards required above, the yards established by such existing buildings shall be used in computing the front yard for a key lot.
('65 Code, § 9-3.504) (Ord. 556, passed - - ; Am. Ord. 686, passed - - ) Penalty, see § 153.999