Front setback. In any residential zone, a front yard is required on every lot which shall be at all points of a depth of not less than as specified in Schedule A: Limiting Lot and Yard Sizes and Bulk Principal Building and Use;[1] provided, however, that where the existing front yards observed by the buildings within the same block are of a greater or lesser depth than specified in Schedule A: Limiting Lot and Yard Sizes and Bulk Principal Building and Use, the front yard shall be at least equal in depth to the average depth of such existing front yard within the same block, but in no case shall the depth of the front yard be less than 30 feet in blocks having less than 1,000 feet in frontage, subject to the provisions of § 59-60A(3).
(1)
In blocks of less than 1,000 feet in street frontage, where there are no dwellings within the block, no new building shall be erected with its street wall or the walls of covered porches nearer the street line than the minimum depth shown for said applicable residential zone specified in the Schedule A: Limiting Lot and Yard Sizes and Bulk Principal Building and Use.
(2)
In any block having a street frontage of 1,000 feet or more, the average front setback of a dwelling shall be the mean of the setback line of the dwelling within 400 feet from each of the side lines of the lot on which the proposed dwelling is to be erected, not including the width of any intervening street, if such be the case, but in no case shall the depth of the front yard be less than 30 feet, subject to the provisions of § 59-60A.
(3)
Notwithstanding anything in the above provisions to the contrary, in addition to the requirements set forth therein, the front line setback of a dwelling, to be erected on a lot in the RA-3 Single-Family Residence Zones which within 100 feet on either side of such lot upon which said proposed dwelling is to be erected there are existing dwellings, shall in no case be less than the mean of the setback lines of the nearest lot on each side on which dwellings are erected.
(4)
On a lot on a cul-de-sac curved street, the setback lines shall be measured from the same lot line on the same arc as the arch of the curve on the lot line.