21.20.100   Lots.
   The size and shape of lots shall conform with any zoning regulations effective in the area of the proposed subdivisions and as shown on the zoning map. In addition, residential lots on curved or cul-de-sac streets shall have a minimum width at the building setback line of sixty feet, a minimum average depth of one hundred feet, and a minimum area of six thousand square feet; provided, that this requirement shall not be deemed to reduce any more restrictive requirement contained in the zoning regulations.
(Ord. 3157 § l (part), 1979)