Swimming Pools & Spas in Thornton, CO (2026)
1 verified swimming pools & spas rules for Thornton, Colorado, sourced directly from the municipal code and official government pages.
Verified from official government sources
Pool Permits
Thornton requires a building permit to construct a residential swimming pool, issued under the city's Building Code, Chapter 10. Pools must be built to the 2024 International Swimming Pool and Spa Code as locally amended, Sections 10-179 and 10-180, and a grading permit exemption for pool excavation only applies once that building permit is in hand, Section 22-114(2).
Thornton Building Permit for Residential Pools
Some RestrictionsThornton City Code § 10-61(a)
General. No person or the federal, state, county or city government or any agency, subdivision or department thereof shall erect, construct, enlarge, remodel, alter, repair, move, improve, remove, convert, demolish or change the type of occupancy of any building, structure or utility or perform any other work regulated by this Building Code or cause such to be performed without first having obt...
Looking for Adams County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Thornton city rules.
Swimming Pools & Spas in Adams County →