When there is an existing building on each of the lots adjoining the lot on which a building is proposed to be erected, and where each such existing building lies within 100 feet of such proposed building and lies nearer to the street line than the required front yard depth elsewhere specified in this Chapter, and when each such existing building is within 100 feet of the proposed building, then the average of the existing front yard depths of such adjoining lots shall be the minimum required front yard depth for the lot on which the proposed building is to be erected.
(Ord. 45, Z-§ 405, 5/12/76)