(A) In any district in which residences are a permitted use, where a lot has an area or width of less than the required area or width and was a lot of record on or before the effective date of this chapter, the lot may be occupied by a single-family dwelling, provided that the minimum front, rear and side yard requirements for the district in which it is located are met and further provided that the requirements of § 155.058 are followed. This provision shall not apply to any lot to which the provisions of § 155.049 apply.
(B) In all other districts where a lot has an area or width of less than the required area or width and was a lot of record on or before the effective date of this chapter, the lot may be occupied by a permitted use, provided that all other requirements of the district are met and further provided that the requirements of § 155.058 are followed. This provision shall not apply to any lot to which the provisions of § 155.049 apply.
(`94 Code, App. C, Art. VI, § 8)