Colorado property records and tax lookups

Who holds it: County Assessor discovers, lists, classifies and values all property.¹

Last checked against official sources on November 8, 2026.

On this page

1. Looking up a property and appealing a value
2. More details
3. Related records in Colorado
4. Property records in Colorado counties with a full guide
5. Official copies vs look-alike sites
6. Sources

Looking up a property and appealing a value

Appealing a value

1) Object to the County Assessor by June 8 for real property, changing to June 1 on January 1, 2027 (C.R.S. 39-5-122); personal property by June 30. 2) County Board of Equalization: by July 15 for real property and July 20 for personal property, or by September 15 in a county using the alternate procedure, where the assessor's determinations go out by August 15. Counties over 300,000 population must use the alternate procedure in general reassessment years; other counties may elect it (39-5-122.7). 3) Then the Board of Assessment Appeals, District Court, or arbitration, no later than the later of September 1, December 1 in an alternate-procedure county, or 30 days after a denial mailed outside the regular schedule (39-8-108(1)(a)).³

More details

Reappraisal

Real property is reappraised in odd-numbered years. Assessors mail Notices of Valuation no later than May 1 each year (C.R.S. 39-5-121(1)(a)(I)).⁴

Tax lien sale

Unpaid real property taxes are sold as tax liens at the county treasurer's annual sale (example: El Paso County, October 28, 2026).⁵

Related records in Colorado

Deeds: who holds it

County Clerk and Recorder of the county where the property is located (Denver: Denver Clerk and Recorder, Recording Division).⁶

Deeds: how to search

Use the county clerk and recorder's online records search or request copies from the recording office; clerks are not required to search real estate records for you (C.R.S. 30-10-101(2.5)(c)).⁶

Maps: state GIS portal

Colorado Geospatial Portal (state GIS hub): geodata.colorado.gov⁷

Maps: parcel data

State publishes "Colorado Public Parcels" and a "Colorado Public Parcel Map" on the Colorado Geospatial Portal, aggregated by the OIT GIS team; parcels are not a tax or ownership record of the state.⁸

Liens: federal tax liens

Federal tax liens against real property are recorded with the county clerk and recorder (C.R.S. 38-25-102); others with SOS.⁹

Property records in Colorado counties with a full guide

The local office, its official online search and its own fee, for each county with a full guide. Local fees can differ from the statewide figures above.

For any other county, see the county list on the Colorado guide.

Rules in other states: property and tax records in every state. Everything else in Colorado: Colorado public records guide.

Sources

Every fact above links to the official page it comes from. Fees and rules change, so check the office's own page before you pay or travel.

1. El Paso County Assessorchecked November 4, 2026
2. Division of Property Taxation homeColorado Department of Local Affairs, Division of Property Taxationchecked November 4, 2026
3. Colorado Revised Statutes 2026, Title 39 (property tax appeals, documentary fee)Colorado General Assembly, Office of Legislative Legal Serviceschecked November 4, 2026
4. Appeals Process / Notice of ValuationEl Paso County Assessorchecked November 4, 2026
5. El Paso County Treasurerchecked November 4, 2026
6. Recording - El Paso County Clerk and RecorderEl Paso County Clerk and Recorderchecked November 4, 2026
7. Colorado Geospatial PortalState of Colorado (OIT GIS)checked November 4, 2026
8. Colorado Geospatial Portal catalog: parcelsState of Colorado (OIT GIS)checked November 4, 2026
9. UCC FAQs - Federal/State tax liensColorado Secretary of Statechecked November 4, 2026
10. AssessorAdams Countychecked November 4, 2026
11. Public RecordsArapahoe Countychecked November 4, 2026
12. AssessorArapahoe Countychecked November 4, 2026
13. Records - Boulder CountyBoulder Countychecked November 4, 2026
14. Assessor's Office - Boulder CountyBoulder Countychecked November 4, 2026
15. Property Search LinksCity and County of Broomfieldchecked November 7, 2026
16. AssessorCity and County of Broomfieldchecked November 7, 2026
17. Search for Records (Clerk and Recorder)Denver Clerk and Recorderchecked November 4, 2026
18. Assessor's OfficeDenver Department of Financechecked November 4, 2026
19. Douglas County Assessor | Property Search, Valuation, Tax and Appeals InformationDouglas County, Coloradochecked November 4, 2026
20. Property Record SearchEagle Countychecked November 8, 2026
21. Eagle County GovernmentEagle Countychecked November 8, 2026
22. Eagle County GovernmentEagle Countychecked November 8, 2026
23. Office of the El Paso County AssessorEl Paso County Assessorchecked November 4, 2026
24. AssessorGarfield County Assessorchecked November 4, 2026
25. Property Records SearchJefferson County Assessorchecked November 4, 2026
26. RecordsJefferson Countychecked November 4, 2026
27. AssessorLarimer County Assessorchecked November 4, 2026
28. Larimer County home pageLarimer Countychecked November 4, 2026
29. Assessor LookupMesa County Assessorchecked November 4, 2026
30. Assessor's OfficeMesa County Assessorchecked November 4, 2026
31. Online ServicesPueblo Countychecked November 4, 2026
32. AssessorPueblo Countychecked November 4, 2026
33. AssessorWeld County Assessorchecked November 4, 2026