Swimming pool permit rules in St. Louis, MO — also covering above-ground pools, in-ground pools, and spa installations — set fencing, barrier, alarm, and inspection requirements.
St. Louis requires a building permit for all pools holding water 24 inches or deeper. Plans must show barriers, setbacks, and electrical. Inspections cover bonding, barrier, and final installation per IRC Appendix G.
Per St. Louis Building Code (based on the 2018 IRC Appendix G) a building permit is required for any swimming pool capable of holding water 24 inches or deeper. Applications include a site plan showing setbacks (typically 5 feet from side/rear lot lines and 10 feet from structures), pool construction drawings, barrier plan, electrical bonding and GFCI circuits, and plumbing for fill/drain. Required inspections include pre-gunite (for in-ground), electrical bonding, barrier installation, and final. Pools must comply with the federal Virginia Graeme Baker Act for anti-entrapment drain covers. Permit fees are based on valuation, typically $150 to $500 for residential.
Unpermitted pool: stop-work order plus fines of $100 to $500 per day. Retroactive permits available with penalty. Unsafe pool: Building Division can order drainage.
St. Louis, MO
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