Kennewick, WA Swimming Pools & Spas: Pool Permits (2026)

Under KMC Chapter 15.44 (Swimming Pool Code) and the Washington State Building Code adopted in WAC 51-50, a swimming pool is a regulated structure and may not be installed in Kennewick without a building permit from the Kennewick Building Division. The permit submittal package typically includes: (1) a completed application identifying the pool type, dimensions, and depth; (2) a plot plan/survey showing the pool location, all setbacks from property lines and the principal dwelling, the barrier/fence, gates, and any decking; (3) electrical bonding and grounding details from a Washington-licensed electrician (required by NEC Article 680 / NFPA 70 and WAC 296-46B-680); (4) manufacturer specifications for above-ground pools or engineered drawings for in-ground pools; and (5) a barrier plan demonstrating IBC Appendix G / ISPSC compliance (see fences/pool-barriers). Setbacks from side and rear lot lines follow the underlying residential zoning district under KMC Chapter 18.27 (commonly 5 to 10 feet for accessory structures including pools). Pools may not be located in a required front yard. The pool may not be filled, and the electrical may not be energized, until the building inspector has signed off on the barrier, gates, alarms, and bonding. Public/semi-public pools (community, HOA, hotel) additionally require a permit-to-operate from the Benton-Franklin Health District under WAC 246-260 (Water Recreation Facilities), implementing RCW 70.90; that chapter does not apply to private single-family residential pools.