Residential building permits in Redmond, WA are issued through the City of Redmond’s Development and Permit Center. Here is what homeowners need to know for 2026 projects.
When Do You Need a Permit in Redmond?
Most additions, structural changes, new construction, ADUs, and mechanical system work require a building permit. Cosmetic work (paint, carpet, cabinet replacements without moving walls) typically does not.
Redmond Permit Timeline (2026)
City of Redmond standard residential permit review: approximately 4-8 weeks for straightforward projects. Redmond has expanded online permitting which has improved processing speed. ADU applications follow the same review path as other residential additions.
Planning a project?
Working out what your lot will allow, and what it will cost?
Send David the address and a few lines about what you want. The first feasibility check is free and usually takes about a day: what the site and the code are likely to allow, and what to check first.
Architect since 1996, member of the AIA and NCARB. Three Masonry Excellence Awards for commercial projects; the Carr residence was featured in Above The Lake and Lux magazines.
Redmond Residential Zoning
Since January 1, 2025, most Redmond house lots are zoned Neighborhood Residential (NR), which replaced R-1 through R-8 and RIN; the former R-12 through R-30 zones became Neighborhood Multifamily (NMF). The rules are set out in the Redmond zoning guide. The Overlake and Redmond Technology areas have high-density mixed-use zoning. Single-family residential areas near downtown and in Willows are seeing increased ADU development driven by tech-sector housing demand.
Piper Cole Architects is headquartered near Redmond and has extensive permitting experience with the City of Redmond. free feasibility check, call 425-753-6452.
Authoritative sources
Regulatory requirements referenced in this guide are set by the official agencies below. Rules change, always confirm current requirements with the source:
