A. Where a lot has been a deed of record of less than 60 feet in width, or an area of less than 7,000 square feet, and was held under separate ownership, or was on public record at the time this chapter became effective, such lot may be occupied by any use permitted in this district. In no case, however, shall a dwelling unit have a lot area of less than 3,000 square feet.

B. If topographical or other conditions exist which make these requirements unreasonable, the city council may waive the front, side or rear yard requirements or establish setbacks deemed reasonable by the city council. [Ord. 9E § 3.]