In the OS district, accessory dwellings and guest cottages existing on April 28, 1986, and which prior to that date were lawful, conforming permitted uses may remain as legal nonconforming uses. Such uses shall be permitted to remodel, improve or replace site improvements on the same site, without necessity to comply with site development regulations for continual use and occupancy by the same use; provided that any such remodeling, improvement or replacement shall not add a kitchen nor result in increased floor area, number of dwelling units, height, length or any other increase in the size of the improvement without complying with the standards set forth in Section 18.28.070(a) and without applying for and receiving a conditional use permit.
(Ord. 4964 § 4 (part), 2007)