Lot Size. Lot area shall be at least 10,000 square feet. Lots of less than 10,000 square feet may be buildable pursuant to Section 17.88.020; provided, that such lots were not part of an aggregate of contiguous lots with an area or dimension of 10,000 square feet or greater held in a single ownership at the time of enactment of Ordinance 79-4A. Where there are lots held in a single contiguous ownership and one of the lots or combination of lots meets the minimum lot size but the other lot or combination of lots does not meet the minimum lot size, there shall be only one buildable lot. Example: three contiguous lots in a single ownership, each lot with an area of 5,000 square feet, constitute one buildable lot. The minimum lot size for all uses, including single-family dwellings, shall be adjusted for average slope using the standards in Section 17.124.070.
The planning commission may authorize the placement of a governmental or municipal structure necessary for public service on a lot of less than 10,000 square feet if it is found that a larger lot is not required and that the smaller lot size will not have a detrimental effect on adjacent areas or uses.