Hamilton, NJ Swimming Pools & Spas: Pool Permits (2026)

Township Code § 550-126, in the land development (zoning) chapter and last amended in 1996 by Ord. No. 96-008, sets the construction rules for private residential swimming pools, separate from the public-pool licensing chapter (Ch. 442) that covers commercial and semi-public bathing facilities. No pool may be built or installed unless the lot has a residence building, and pools must sit in the rear yard, with in-ground pools keeping a seven-foot setback from the water's edge to every property line and a four-foot landscape buffer of grass, shrubs or trees along the side and rear lot lines; filters and mechanical equipment cannot sit within that seven-foot setback.

Aboveground pools need a ten-foot setback to the water's edge or the deck's closest point, whichever is nearer the line, with the same equipment exclusion. A pool must also stay at least five feet from the principal building, though it can come closer to an attached open deck. Subsection D requires in-ground pool applications to include a grading plan showing existing and proposed grades and drainage flow, signed and sealed by a licensed New Jersey professional engineer; aboveground pools need only a plot plan under Subsection E, without grading detail.

Subsection F is the key permit threshold: pools under 24 inches deep or with a surface area under 250 square feet do not need a construction permit at all, unless they are permanently plumbed with a recirculating system or involve structural materials. Fencing or another approved safety device is required under § 550-126, referencing the Uniform Construction Code.