A. All uses shall be conducted entirely within an enclosed structure, except noncommercial municipal automobile parking facilities in the RO-H zone.

B. There shall be no outside storage of materials allowed.

C. Refuse cans, containers or dumpsters shall be screened from the view of adjoining properties.

D. No on-site hazardous substance processing and handling, or hazardous waste treatment and storage facilities, shall be permitted, unless clearly incidental and secondary to a permitted use. On-site hazardous waste treatment and storage facilities shall be subject to the state siting criteria (Chapter 70.105 RCW).

E. Any new construction, including additions and alterations, within the RO district shall utilize similar bulk, scale, and architectural and landscape elements of the existing site structure or those of the neighborhood in which the property is located. A site plan and building elevation plans shall be prepared by the applicant which address compliance with the requirements as outlined in this subsection. The plans shall be approved by the planning director or designee prior to the issuance of any building permits.

The planning director and the public works director or designees may deviate from the development standards under ACC 18.35.040 up to 10 percent, for example, reduce rear yard setback by one and one-half feet, to address unusual circumstances for conversions of single-family residential uses to nonresidential uses. (Ord. 6894 § 1 (Exh. B), 2022; Ord. 6434 § 1, 2012.)