Hometriva logoHometriva

Jurisdiction directory

Colorado home project permits by county

Many Colorado households live outside city limits, where the county building department — not a city — issues the permit. 11 Colorado counties, covering the state's largest jurisdictions, are inventoried here.

Model reviewed August 2026

Counties covered

11

largest jurisdictions first

Municipalities tracked

16

in Colorado

Population covered

5.0M

residents in listed counties

Code basis

Local

Local adoption of the IRC; no statewide residential code outside the wildfire code

Featured counties

The largest and most active permit jurisdictions in the state.

El Paso County740,567 residents · seat Colorado SpringsArapahoe County655,070 residents · seat LittletonJefferson County577,808 residents · seat GoldenDenver County715,522 residents · seat DenverAdams County526,006 residents · seat BrightonDouglas County376,533 residents · seat Castle RockLarimer County366,857 residents · seat Fort CollinsWeld County350,000 residents · seat GreeleyBoulder County327,468 residents · seat BoulderPueblo County169,500 residents · seat PuebloMesa County158,000 residents · seat Grand Junction

All Colorado counties we cover

11 counties, largest first.

El Paso CountySeat: Colorado Springs · 740,567 residentsDenver CountySeat: Denver · 715,522 residentsArapahoe CountySeat: Littleton · 655,070 residentsJefferson CountySeat: Golden · 577,808 residentsAdams CountySeat: Brighton · 526,006 residentsDouglas CountySeat: Castle Rock · 376,533 residentsLarimer CountySeat: Fort Collins · 366,857 residentsWeld CountySeat: Greeley · 350,000 residentsBoulder CountySeat: Boulder · 327,468 residentsPueblo CountySeat: Pueblo · 169,500 residentsMesa CountySeat: Grand Junction · 158,000 residents

Sources

Sources & verification

Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.