The regulations specified in this chapter shall be subject to the following exceptions, modifications, and interpretations.
(A) Extension of time. Under special conditions, the Council may grant extensions of time otherwise set forth in this chapter.
(B) Use of existing lots of record. In any district where dwellings are permitted, a single-family dwelling may be located on any lot or plot of official record as of the effective date of this chapter which does not meet area and/or width requirements of this chapter, provided that the following conditions are met:
(1) The sum of the side yard widths of any such lot or plot shall not be less than 25% of the width of the lot, but in no case less than 10% of the width of the lot for any one side yard;
(2) The depth of the rear yard of any such lot need not exceed 20% of the depth of the lot, but in no case shall be reduced below 20 feet; and
(3) No building permit shall be issued for construction on any substandard lot, which lot was of record at the time of the adoption of this chapter, if said lot is adjacent to and has continuous frontage with any other lot which at the time of the adoption of this chapter was in the same ownership or whose ownership has beneficial interest in said lot, unless said lots are combined into one lot meeting the requirements of the zoning district which is applicable.
(Zoning Code, Art. I Part III)