Fishers, IN Swimming Pools & Spas: Hot Tub Rules (2026)

The City of Fishers addresses spas and hot tubs primarily through its accessory-structure standards and the statewide residential code. Sec. 6.2.2 of the UDO (Residential Accessory Structures) opens by listing 'hot tub enclosures' and 'pool houses' among the detached accessory buildings and structures that are subject to its regulations. As accessory structures, an enclosure built around or for a spa must comply with the article's combined accessory floor-area caps (which scale with parcel size, starting at 1,000 square feet for lots under one acre), the height limits by zoning district (for example, 18 feet for R1-R5 districts), and the placement and setback rules in Sec. 6.2.2.C. Where a spa is paired with hardscape or sits near a pool, the pool placement standards (water perimeter at least 5 feet from rear and side property lines) also come into play. For safety, Indiana Residential Code Section R326 (675 IAC 14-4.4-38) governs residential spas and hot tubs the same way it governs pools: an enclosure or barrier requirement applies to structures capable of holding water more than 42 inches deep, while spas and hot tubs equipped with an approved safety cover are commonly treated under the code's cover provisions. Because Section R326 is enforced by the local building official, Fishers verifies barrier or cover compliance through its permit and inspection process. Electrical permits typically apply for a spa's wiring, and homeowners should review HOA covenants, which may add screening or placement conditions.