If the aggregate of contiguous lots held in a single ownership as recorded in the office of the County Clerk at the time of the passage of this chapter has an area or dimension which does not meet the lot size requirements of the zone in which the property is located, the holdings may be occupied by a use permitted in the zone subject to the other requirements of the zone; provided that, if there is an area deficiency, residential use shall be limited to a single-family dwelling or to the number of dwelling units consistent with the density requirements of the zone. (Ord. 80-2, passed 06/14/2010)