Find licensed deck builders and contractors across Colorado. Browse 10 cities with license data and local permit requirements.
10
Cities Covered
$21-$52
Cost per Sq Ft
$86-$575
Permit Fees
Deck permits across Colorado are administered at the city or county level, and requirements vary between jurisdictions. In Denver, Colorado Springs, Aurora, the dominant building code in force is Denver Residential Code 2021, based on the 2021 International Residential Code (IRC) with Denver amendments (some jurisdictions still on 2023 Pikes Peak Regional Building Code (based on ICC codes)). Uncovered decks 12 inches or less off ground: no permit needed. Uncovered decks over 12 inches: zoning permit required. Uncovered decks 30 inches or more off ground: both zoning AND building permits required. All covered structures need both permits. That said, any deck that meets any one of the following usually requires a permit regardless of size: attached to the dwelling, over 30 inches above grade, covered with a roof, or serving a required exit door. Denver processes residential plan reviews in 3-10 business days for standard residential projects. real-time status dashboard available at denvergov.org/buildingpermitstatus.. Always verify current rules directly with your local building department before pulling in a contractor, because Colorado has no statewide fee schedule — every city sets its own.
Denver
Pop. 715,522
Colorado Springs
Pop. 478,961
Aurora
Pop. 386,261
Fort Collins
Pop. 169,810
Lakewood
Pop. 155,984
Thornton
Pop. 141,867
Arvada
Pop. 124,402
Westminster
Pop. 116,317
Pueblo
Pop. 111,876
Centennial
Pop. 108,418
Average costs for a typical 300 sq ft deck with railing in Colorado.
| Material | Low | Average | High |
|---|---|---|---|
| Pressure-Treated Wood | $6,458 | $8,280 | $10,930 |
| Cedar | $8,970 | $11,500 | $15,180 |
| Composite (Trex, TimberTech) | $12,558 | $16,100 | $21,252 |
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