Deck 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
By Joey, Founder · Last verified May 15, 2026 · How we research →
When you don’t need a Deck permit in Denver
Freestanding decks not exceeding 30 inches above grade are exempt.
When you need a Deck permit in Denver
Attached decks require a building permit.
Decks over 30 inches require a permit in Denver, CO. Snow load design required.
Covered decks require permits in Denver, CO. Snow load engineering required.
What Makes Denver Different
Here's how Denver's deck rules stack up against the standard IRC baseline that most of the country follows.
Stricter Than the IRC
Attached decks require a building permit in Denver, CO.
Decks over 30 inches require a permit in Denver, CO. Snow load design required.
1 rule match the IRC baseline, no surprises there.
Deck Permit Costs: Denver vs. Nearby
Denver comes in on the low side for Colorado. You're looking at $100 – $800 here, compared to the state average of $133 – $443.
| City | Estimated Fee |
|---|---|
| Denver | $100 – $800 |
| Colorado Springs | $100 – $600 |
| Aurora | $90 – $720 |
| Fort Collins | $100 – $600 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all Denver permit costs →
Who's pulled permits near you in Denver?
We track 29,365 real permit records from Denver. Check what's been filed at any address, useful for buyers vetting a listing or neighbors curious about ongoing work.
Zoning & HOA Considerations
Decks may be subject to zoning setback and lot coverage requirements. Check with your local planning department before building near property lines.
If you live in an HOA community: many HOAs restrict deck materials, colors, size, and placement. Review your CC&Rs and submit an architectural review request before applying for a building permit. HOA approval can take 1–6 weeks.
Estimated Project Timeline in Denver
Here's a typical timeline for a deck project in Denver, CO:
Timeline is based on Denver's typical about 4 weeks permit processing time. Actual timelines vary by project complexity, completeness of application, and current department workload.
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Frequently Asked Questions
Estimated permit fees for Deck projects in Denver, CO range from $100 – $800. Fees vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Deck 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 Deck permits in Denver is about 2 weeks. More complex projects may take longer if plan review is required.
If you live in an HOA community, you may need architectural review approval in addition to a building permit. HOA rules and city building codes are separate, you may need to satisfy both. Review your CC&Rs and submit to your HOA's architectural review committee before starting work.
Learn More About Deck Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Deck Guide →