Plumbing Work Permit Requirements in Denver, CO
Denver uses Denver Building and Fire Code (based on 2021 I-Codes with amendments). High altitude (5,280 ft) affects HVAC sizing. 30 psf ground snow load. Radon-resistant construction required. Green Building Ordinance for large buildings. ADUs allowed citywide. Email: development.services@denvergov.org
When you DON'T need a permit
Replacing a fixture in-kind does not require a permit in Denver, CO.
Source: Denver Building and Fire Code (2021 I-Codes with amendments)
When you DO need a permit
Adding a fixture requires a permit in Denver, CO.
Estimated fee: $75 – $300
Typical timeline: About 2 weeks
Source: Denver Building and Fire Code (2021 I-Codes with amendments)
Rerouting plumbing requires a permit in Denver, CO.
Estimated fee: $100 – $400
Typical timeline: About 2 weeks
Source: Denver Building and Fire Code (2021 I-Codes with amendments)
Water heater replacement requires a permit in Denver, CO. High altitude affects gas appliance sizing.
Estimated fee: $50 – $200
Typical timeline: 5 business days
Source: Denver Building and Fire Code (2021 I-Codes with amendments)
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Frequently Asked Questions
Estimated permit fees for Plumbing Work projects in Denver, CO range from $75 – $300. Fees vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Plumbing Work projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit in Denver can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Typical approval time for Plumbing Work permits in Denver is About 2 weeks. More complex projects may take longer if plan review is required.
Learn More About Plumbing Work Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Plumbing Work Guide →