Variable Lot Size Provisions. In a subdivision application, variable lot sizes may be approved by the Planning Board. The lot sizes may be varied to the extent that lots may have areas of not less than 15,000 square feet each and a width of not less than 100 feet if sufficient of the remainder of the lots are increased in area so that the average lot size will be not less than 20,000 square feet. The Planning Board, in passing on such plats, shall consider the physical and structural characteristics including topography of the land comprised in the subdivision and determine that such variation in lot size will provide a better layout of the subdivision and a better use of the land for building sites than would a uniform lot size.
The subdivider shall submit a plat map showing the development according to the requirements of the R-20(V) district as shown in the Schedule referenced in Section 16-8, and another plat map showing the development as modified in accordance with this subsection. In no event shall the density of development throughout the subdivision exceed the exact number of lots that would have been permitted to be built if such development had proceeded on the basis of 20,000 square feet per lot with a width of less than 100 feet.