(a) Nothing contained herein shall prohibit the use of an existing lot of record, as defined in Article 1327, which does not comply with the District Schedule of Dimensional Requirements (Schedule 4-A), provided that each of the following criteria are met:
(1) Development of the lot shall satisfy all applicable requirements of the City of Wheeling, the Ohio County Health Department, and the West Virginia Department of Environmental Conservation for potable water supply and sewage disposal facilities.
(3) If created after the effective date of this chapter, the lot is part of a subdivision plat approved by the City of Wheeling in accordance with Chapter One, Subdivision Regulations, and filed in the Office of County Clerk in a timely manner pursuant to City Law.
(3) The lot shall be developed solely for a principal single-family dwelling.
(4) Development may, upon a demonstration by the applicant that greater side and rear yards which either comply or more nearly comply with this chapter cannot be reasonably provided, occur as long as the side and rear yards are no smaller than sixty percent of that required for the district.
(b) All other lot, area, and bulk requirements for the district shall be met.