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Swimming Pools & Spas

Swimming Pools & Spas in Wilmington, DE: What Residents Actually Need to Know

By CityRuleLookup Editorial Team

If you live in Wilmington or are thinking about moving there, swimming pools & spas are one of those things you probably won't think about until they affect you directly. Wilmington has 2 specific rules on the books covering different aspects of swimming pools & spas, and some of them might surprise you.

Fencing & Safety Requirements

Wilmington adopts the 2018 International Swimming Pool and SPA Code by reference, setting the safety, barrier, and construction standards that govern every residential and public pool built or altered in the city.

Key details: Governing code: 2018 International Swimming Pool and SPA Code. Adopting section: City Code § 4-26. Enforcing agency: Dept. of Licenses and Inspections. In-ground pool permits: Site plan required regardless of size. First-offense fine: $250 to $1,000.

Violating the adopted building and pool code brings fines of $250 to $1,000 for a first offense, $500 to $2,500 for a second, and $1,000 to $5,000 for a third or later offense, with optional community service (Code § 4-3).

Pool Permits

Wilmington treats any residential swimming pool, above-ground or in-ground, as an accessory structure: a rear-yard pool can't cover more than 40% of the required rear yard, and a side-yard pool must sit at least 10 feet from both the house and the lot line.

Key details: Rear yard coverage cap: 40% of required rear yard. Side yard setback: 10 feet from house and lot line. Governing code: Wilmington City Code § 48-495. Enforcing agency: Dept. of Licenses and Inspections.

Non-compliant placement is a zoning violation enforceable by the Department of Licenses and Inspections, which can order the pool relocated or removed and require a permit before it's filled or used.

The Bottom Line

Wilmington's swimming pools & spas rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Wilmington is broadly strict or permissive.

All of the above reflects Wilmington's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.