No building or structure, nor the enlargement of any building or structure, in the Residence A Zone shall be hereafter erected or maintained unless the following described yards and lot areas are provided and maintained in connection with such building, structure or enlargement:
A. Front Yard: Each lot upon which a dwelling is constructed shall have a front yard of not less than thirty five feet (35'). Where lots comprising forty percent (40%) or more of the frontage between two (2) intersecting streets are developed with buildings having front yards with a variation of not more than twenty feet (20') in depth, the average of such front yards shall establish the minimum front yard depth for the entire frontage. In no case shall a front yard of more than fifty feet (50') be required.
1. On interior lots there shall be a side yard on each side of a main building of not less than ten feet (10') and a combined total of side yards of not less than twenty five feet (25').
2. On corner lots, the side yard requirements shall be the same as for interior lots, except that there shall be maintained a side yard of not less than ten feet (10') on the side adjacent to the street which intersects the street upon which the building or structure maintains frontage.
3. On a reversed corner lot, there shall be maintained a setback from the side street of not less than fifty percent (50%) of the front yard required on the lots in the rear of such corner lots, but such setback need not exceed twenty feet (20'). No accessory building on a reversed corner lot shall project beyond the front yard required on the adjacent lot to the rear, nor be located nearer than ten feet (10') to the side lot line of an adjacent lot.
C. Rear Yard: There shall be a rear yard having an average depth of not less a fifty feet (50').
D. Lot Coverage: Not more than thirty five percent (35%) of the area of a lot may be covered by main buildings, structures or accessory buildings.
E. Lot Area: Every dwelling erected or structurally altered shall be on a lot having an area of not less than ten thousand (10,000) square feet and a width at the established building line of not less than seventy five feet (75'); provided however, that a single lot having less area and width, the title to which has been recorded before the enactment of this Chapter, may be improved with a single-family dwelling, provided all yards and open spaces are within seventy five percent (75%) of those required herein and; provided further, the total lot area is not less than seven thousand five hundred (7,500) square feet.
F. Accessory Buildings: Accessory buildings shall not encroach upon the front yard. They may encroach upon the side yards; provided, no buildings are closer to the lot lines than ten feet (10'); provided further, that on a corner lot, accessory buildings shall not encroach upon the front or side yards adjacent to the abutting streets. (1965 Code § 11-3-3)