Mason County, WA Zoning Overlays & Bonuses: Downtown Design Guide (2026)

Chapter 17.30, Building Design Requirements in the Belfair UGA, functions as Mason County's downtown design code for its North Mason commercial center. Section 17.30.010 states the purpose is to reduce building bulk and mass, add visual interest, retain Belfair's small town character, and encourage pedestrian-scale design. Section 17.30.020 applies these standards to all commercial and multi-family development, exempting only the business-industrial zone, and lets the Community Development director waive individual standards where a building is screened from public view, though retail and multi-family uses can never be exempted.

Commercial buildings with more than fifty feet of street frontage must add at least two modulation or articulation features, such as building recesses of six feet, repeating window patterns, covered entries, or roofline changes; multi-family buildings face the same requirement at forty-foot intervals. Buildings over one hundred feet long need an added special design feature like a broken roofline or clock tower. Structures over three stories or one hundred feet wide must use at least three human-scale elements, such as upper-story setbacks or bay windows, drawn from a list in § 17.30.020(4).

Untreated blank walls facing streets are prohibited, and materials must be durable and non-reflective, with additional standards for sheet siding, concrete block, and prefabricated metal buildings. Mason County Community Development reviews compliance during Belfair UGA site plan review, and the Chapter 15.13 hearing examiner process handles disputed enforcement actions.