Douglas County Colorado Property Search
To search Douglas County property records, use the tool below by owner name, parcel number, or street address. Douglas County sits between Denver and Colorado Springs and is one of the wealthiest counties in Colorado — and the country — anchored by master-planned communities like Highlands Ranch, Castle Rock, and Parker. It has about 129,829 residential and 2,458 commercial properties, a relatively new housing stock, and an effective 2025 property tax rate of around 0.65%. Records are kept by the Douglas County Assessor in Castle Rock.
Property Search
Partial info works — a last name or street name is enough.
Note: Results come from Colorado’s public GIS database and may not reflect the most recent changes. For verified records, contact the county assessor directly.
How Property Is Assessed in Douglas County
The Douglas County Assessor values residential and commercial property, with a full reappraisal in odd-numbered years. Because so much of the county is newer, master-planned housing, the Assessor relies heavily on recent comparable sales within each community to set values. The office also processes primary-residence and other exemptions, maintains parcel maps and aerial photography at its public counters, and keeps assessment records going back several decades. See our guide on how Colorado values your home.
Each parcel has a unique parcel number, which is the fastest and most accurate way to pull up ownership, land size, building details, and tax records. Try our tax estimator to see what you might owe.
Assessor’s Office — Contact & Key Dates
Castle Rock, CO 80104
Early June — real property appeals are generally due. Confirm the exact date each year with the Assessor before filing.
Jan 1 – April 30 — business personal property reporting period.
If your appeal is denied, you can petition the County Board of Equalization.
4 Ways to Find a Property Record
Full or partial name — shows all parcels registered under one owner.
Unique ID on your tax statement or deed. Fastest and most accurate method.
Enter the address to pull current owner, parcel data, and assessed value.
Filter to Castle Rock, Highlands Ranch, or Parker to browse an area.
Property Tax by City
| City / Town | Population (est.) | Effective rate | Median tax (est.) |
|---|---|---|---|
| Highlands Ranch | ~103,444 | ~0.58% | ~$4,300+ |
| Castle Rock (county seat) | ~76,954 | ~0.63% | ~$3,520+ |
| Parker | ~60,207 | ~0.60% | ~$3,612 |
| Lone Tree | ~15,297 | ~0.60% | ~$4,500+ |
| Castle Pines | ~12,246 | ~0.63% | ~$3,980+ |
| Larkspur | ~207 | ~0.61% | ~$1,265 |
Mill levies vary by city and special district; check the Treasurer for a specific property’s rate. These figures are estimates for research; confirm exact amounts with the Douglas County Treasurer.
Exemptions & Tax Relief
Homeowners 65 or older who have owned and lived in their home for 10 consecutive years can have 50% of the first $200,000 of value exempted. Apply with the Assessor. Learn about qualifying for the homestead exemption.
Veterans with a 100% permanent service-connected disability get the same 50% exemption on the first $200,000, regardless of age. Surviving spouses may qualify. See property tax relief for veterans.
The Assessor’s office handles primary-residence exemption applications directly — worth checking if you’ve recently bought or changed your primary home.