A. Nonresidential Additions and Reconstruction. When expansion of floor area creates an increase of ten percent or more in the number of required on-site parking spaces in an existing nonresidential building, additional on-site parking shall be provided for such addition and not for the entire building or site. Additional parking spaces are not required for the reconstruction of an existing building when there is less than ten percent increase in floor area.

B. Residential Additions. At least one legally conforming space shall be provided for each existing unit, in addition to all parking required for the addition itself, unless otherwise exempted for an approved accessory dwelling unit or through an approved parking reduction, as authorized by Section 17.72.050 (Parking Reductions).

C. Use Changes. Changes in use that increase the total parking demand from existing legal uses that are nonconforming because they do not meet current parking requirements may be allowed so long as the number of spaces equal to the difference between the number required by the previous use and the number required by the new use is provided, in addition to all spaces already provided for the previous use. The existing parking shall be maintained. If the number of existing parking spaces is greater than the requirements for such use, the number of spaces in excess of the prescribed minimum may be counted toward meeting the parking requirements for the addition, enlargement, or change in use. A change in occupancy is not considered a change in use unless the new occupant is in a different use classification than the former occupant. (Ord. 1705 § 36, 2021; Ord. 1650 § 3 (Exh. B), 2018)