In cases of infill development or redevelopment in any one-family residential zoning district, where a prevailing front yard setback exceeding the minimum requirement has been established by other existing homes fronting on the same side of the same street, and where such development or redevelopment affects property situated adjacent to or between such existing homes, the prevailing front yard setback shall be the minimum applicable to new home construction, as well. If application of the prevailing front yard setback to the proposed new construction would result in a deviation from any other aspect of the Schedule of Requirements table, or would reduce a building footprint so as to preclude construction of a home having proportionate width/depth dimensions or having the maximum allowable principal building coverage for the zoning district in which the property is located, or would be physically impossible due to the dimensions, location, or other characteristics of the lot on which it would be located, the applicable front yard setback minimum shall be reduced from the prevailing setback dimension to the maximum dimension at which such deviations and/or practical difficulties will be averted, but in no case to a dimension less than that set forth by the Schedule of Requirements table.