Swimming pool permit rules in Multnomah County, OR β also covering above-ground pools, in-ground pools, and spa installations β set fencing, barrier, alarm, and inspection requirements.
Multnomah County swimming pool construction requires a building permit in all jurisdictions, issued by Portland BDS for Portland, each city's building department elsewhere, and Multnomah County Land Use & Transportation for unincorporated areas. Oregon Residential Specialty Code (ORSC) Appendix G and OAR 918-480 govern design. Pools holding water over 24 inches deep require barrier, electrical, and final inspections.
A building permit is required for all in-ground and permanent above-ground swimming pools, spas, and hot tubs in Multnomah County. Portland permits are issued by the Bureau of Development Services (BDS) under Portland City Code Title 24 (Building Regulations) which adopts the Oregon Residential Specialty Code (ORSC) Appendix G and Oregon Electrical Specialty Code. Unincorporated county permits come from Multnomah County Land Use & Transportation. Plan review covers setbacks (typically 5 feet from side/rear property lines in Portland R zones), barrier height (minimum 48 inches per ORSC AG105), self-closing self-latching gates, and 4-inch sphere rule for barrier openings. Electrical permits are separate and require GFCI protection, bonding grid around the pool shell, and proper underwater light wiring per OESC. Anti-entrapment drain covers per the federal VGB Act are mandatory. Above-ground pools over 24 inches deep require permits; temporary inflatables under 24 inches are exempt. Final inspection is required before filling with water. Permit fees in Portland range from about $400 to $1,200 depending on pool value. Oregon Building Codes Division (OAR 918-480) oversees statewide standards.
Unpermitted pool installation: stop-work order and retroactive permit at double fee. Portland BDS civil penalty: $500 to $5,000 for continued unpermitted work. Missing barrier at final inspection: denied certificate of completion until compliant. VGB drain cover missing: immediate closure order until retrofit.
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