Ann Arbor's Swimming Pools & Spas: The Rules That Matter

Every city handles swimming pools & spas a little differently. In Ann Arbor, Michigan, there are 5 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Fencing Requirements

Michigan Building Code requires pool barriers at least 48 inches (4 feet) high. Self-closing, self-latching gates required. Prevents unsupervised child access.

Key details: Height: 48 inches (4 feet) minimum. Gates: Self-closing, self-latching. Latch Height: 54 inches from ground. Ground Gap: Max 4 inches.

Non-compliant barriers: immediate correction required. Fines $100 to $500. Increased liability for drowning incidents without proper barriers.

This is not one of those rules that cities tend to ignore. Ann Arbor actively enforces its fencing requirements requirements.

Pool Permits

Ann Arbor requires building permits for swimming pools, spas, and hot tubs per Michigan Building Code. Inspections required before use.

Key details: Permit: Required for all pools. Above-Ground: If >24" deep. Inspections: Electrical, barrier, final. Climate: Winterization required.

Unpermitted pool: stop-work order. Retroactive permit with penalty (2 to 3x normal fee). May require modifications for code compliance.

Safety Rules

Michigan Building Code and federal VGB Act require pool safety features including barriers, anti-entrapment drain covers, and GFCI electrical protection.

Key details: Drain Covers: Anti-entrapment required. Electrical: GFCI protection required. Federal Law: VGB Act compliance. Winterization: Required in Michigan climate.

Non-compliant safety features: correction order. Fines $100 to $500. Increased insurance premiums or coverage denial.

Compared to other cities, Ann Arbor takes a harder line on safety rules. The enforcement and penalty structure reflects that.

Above-Ground Pools

Ann Arbor regulates above-ground pools including permit requirements, setbacks, and barrier standards. Pools over a certain depth or capacity typically require permits.

Key details: Permit Threshold: Over 24 inches deep typically. Barrier: 48-inch walls may qualify. Electrical: GFCI required. Setbacks: From property lines.

Unpermitted pools: removal or retroactive permit with double fees. Safety violations: immediate correction required. Fines $100 to $500.

Hot Tub Rules

Ann Arbor regulates hot tub and spa installation including electrical permits, barrier requirements, and placement rules.

Key details: Electrical Permit: Required for 240V. Safety Cover: May satisfy barrier rules. Setbacks: From property lines. GFCI: Required.

Unpermitted electrical work: fines and required correction. Drainage violations: remediation required. Safety cover violations: immediate correction.

The Bottom Line

Ann Arbor is tougher than many cities when it comes to swimming pools & spas. Out of the 5 rules covered here, 2 are rated strict. If you are a homeowner, renter, or business owner in Ann Arbor, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

This guide is based on Ann Arbor's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.