Denver's Swimming Pools & Spas: The Rules That Matter

Every city handles swimming pools & spas a little differently. In Denver, Colorado, there are 3 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.

Above-Ground Pools

Above-ground pools in Denver still require a building permit and must meet all barrier and safety requirements. Mesh fencing for above-ground pools has specific installation rules.

Key details: Permit Required: Yes, for all pools including above-ground. Barrier Height: 60 inches minimum on exterior. Mesh Fence Clearance: 4 inches maximum from grade. Mesh-to-Water Distance: 48 inches minimum. Electrical: Bonding required.

Unpermitted above-ground pool may require removal or retrofitting. Safety barrier violations halt certificate of occupancy.

Fencing Requirements

Denver requires pool barriers at least 60 inches (5 feet) high with self-latching, self-closing gates. Fencing must completely surround the pool. Complies with 2021 Denver Building Code (Appendix T).

Key details: Barrier Height: 60 inches (5 feet) minimum. Gate Latch Height: 54 inches minimum. Picket Spacing: 4 inches maximum. Gates: Self-closing, self-latching, open away from pool. Code: 2021 Denver Building Code Appendix T.

Pool fencing violations halt certificate of occupancy. Non-compliant barriers require correction before pool can be filled.

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

Safety Rules

Denver requires building permits for all new pools and spas. Inspections cover pool structure, electrical, bonding, gas, plumbing, and fence. Final inspection required before filling.

Key details: Building Permit: Required for all pools. Inspections Required: Structure, electrical, bonding, fence, gas. Fill Restriction: No water until barrier complete and approved. Apply Via: Denver CPD – ResidentialPermits@denvergov.org. Code Reference: IRC / 2021 Denver Building Code.

Filling a pool before final inspection approval can result in stop-work orders and fines.

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

The Bottom Line

Denver is tougher than many cities when it comes to swimming pools & spas. Out of the 3 rules covered here, 2 are rated strict. If you are a homeowner, renter, or business owner in Denver, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

Keep in mind that Denver can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.