In any district where dwellings are permitted, a one-family detached dwelling or accessory building if the lot is already occupied by a one-family residence, may be erected on any lot of official record on the effective date of this chapter, even though such lot does not comply with the lot area and width requirements of the district in which it is located, provided said lot has a minimum of 35 feet frontage on a public street; and further provided the following conditions are complied with:
(A) In any district where dwellings are permitted, two inches may be deducted from the required minimum width of each side yard and four inches from the required minimum width of both side yards for each foot that the lot is narrower than the required width for the district. In no case, however, shall any side yard be narrower than four feet.
(B) For lots having a depth of less than 110 feet, the depth of the rear yard need not exceed 25% of the total depth of the lot, but shall not be less than 20 feet.
(Ord. 34-90, passed 12-26-90)