Patio Covers, Pergolas & Decks in Denver, CO

Building a Patio Cover, Pergola or Deck in Denver: What to Know

Denver reviews zoning and building separately. Covered structures like patio covers, porches and pergolas need both a zoning permit and a building permit. Decks need a zoning permit once they are 12 inches or more above grade, and a building permit at 30 inches or more. We prepare the site plan, elevations and structural drawings Denver requires and submit them through the city's e-permits system.

Denver's snow load requirement went up. The 2025 Denver Building Code, based on the 2024 International Codes, applies to all new permit submittals after December 31, 2025. Its prescriptive ground snow load is 43 psf, up from 35 psf. A cover designed to older numbers, or to a manufacturer's out-of-state spec sheet, can get sent back in plan review. We design to Denver's current requirement.

Screen rooms and patio enclosures. Denver treats an enclosed patio as an addition. A non-habitable enclosure whose walls and windows are at least 65% glass does not need the full foundation, heating and insulation a true room addition does, which keeps the cost reasonable.

Historic districts and HOAs. If your home is in a designated Denver historic district, exterior additions also go through Landmark Preservation review before a permit is issued. Newer neighborhoods like Central Park and Green Valley Ranch usually have HOA design guidelines. We put together the drawings and material specs your HOA needs.

Older homes need a closer look. Many bungalows and Tudors in Washington Park, the Highlands and Park Hill have low rooflines or brick exteriors. We check whether your house can carry an attached cover, or whether a freestanding design is the better choice.

Denver FAQs

Do I need a permit for a pergola in Denver?

Yes. Denver lists pergolas alongside patio covers and porches as needing both zoning and building permits.

How long does a Denver permit take?

It varies with the city's workload. Denver posts current review times on its Average Plan Review Times dashboard, and we'll give you an up-to-date estimate at your consultation.

Do you handle the permit and inspections?

Yes. We handle drawings, submittal, plan review comments and inspections.