Kirkland, WA Building Setbacks & Zoning: Setback Rules (2026)

Kirkland zoning districts are organized under KMC Title 115, which sets distinct setback standards for each low-density residential zone (RS), multifamily, and mixed-use classification. In typical RS 7.2 and RS 8.5 single-family zones, the front yard setback is 20 feet, side yards are 5 feet each, and rear yards are 15 feet from the property line. Corner lots must meet front-yard standards on both street frontages, though the secondary street sometimes has a reduced setback. Higher-density RM zones and downtown MF zones have different setbacks tied to building height and adjacent uses. Allowed encroachments include eaves up to 24 inches, chimneys of limited width, and uncovered porches that meet specific size caps. Accessory structures under 200 square feet may have reduced rear setbacks in some zones. Fences, arbors, and rockeries generally can be placed at the property line subject to height limits. New construction near critical areas, shorelines, or steep slopes must observe larger buffers under KMC Chapter 90, which can exceed standard setbacks. Applicants for variances to setback standards follow a quasi-judicial hearing process through the hearing examiner. Confirm zone-specific setbacks with Kirkland Planning and Building at (425) 587-3600 before submitting permit drawings.