Section 8.18
No portion of a lot can be used more than once for determining compliance with the provisions for lot area and yard dimensions for construction or alteration of buildings.
No lot, adjacent lots in common ownership, required yard, parking area, or other required open space shall be created, divided, or reduced in dimensions or area below the minimum requirements of this Ordinance. If already less than the minimum requirements of this Ordinance, a lot, adjacent lots in common ownership, required yard, parking area, or other open space shall not be divided or reduced in dimensions or area so as to increase its noncompliance with the minimum requirements of this Ordinance. Lots or yards created after the effective date of this Ordinance shall comply with the requirements of this Ordinance.
In calculating the area of a lot that adjoins a dedicated alley or lane, for the purpose of applying lot area requirements of this Ordinance, one-half (1/2) the width of such alley abutting the lot shall be considered as part of the lot.