Adams County property record for 9971 Harrison St, Thornton, CO 80229
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,236 sqft · built 1988 |
| Lot Size | 0.169 acres (7,405 sqft) |
| Owner | Owner Name on File |
| Last Sale | $200,000 (Sep 2005) |
| Tax Bill | $1,065 (2025) |
| Deeds & Mortgages | Jun 2020 Construction Loan |
| Flood Zone | Zone X (minimal risk) |
| APN | R0040379 |
| Primary APN | R0040379 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Plumbing Fixtures | 6 Plumbing Fixtures |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,236 sqft Living Area |
| Interior Walls | Wallboard/Drywall |
| Fireplace | Fireplace |
| Year Built | Built 1988 |
|---|---|
| Architectural Style | Split Level |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 7,405 sqft (0.169 acres) |
| Lot Dimensions | 105 ft deep x 70 ft wide |
| Garage Type | Attached |
| Garage Area | 475 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air |
| Account Number | R0040379 |
|---|---|
| Old Parcel Number | 171913408014 |
| Street Address | 9971 HARRISON ST |
| City | THORNTON |
| State | CO |
| Zip | 80229-2867 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUB:NORTH HILLS FILING NUMBER ONE SUBD BLK:4 LOT:8 |
| Legal Range | 68W |
| Legal Township | 02S |
| Legal Section | 13 |
| Legal Quarter | SW |
| Legal Subdivision | NORTH HILLS FILING NUMBER ONE SUBD |
| Legal Block | 4 |
| Legal Lot Number | 8 |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | WEST ADAMS |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 9207 |
The current owner of 9971 Harrison St bought it in September 2005.
Source: Adams County records, as of February 9, 2026
| Owner of Record | Owner Name on File |
|---|---|
| Mailing Address | 9971 HARRISON ST, THORNTON, CO 80229-2867 |
| Occupancy | Owner Occupied |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 21, 2005 · Amount on File |
| Deed Sale | Sep 21, 2005 · Amount on File |
| Deed Document Number | 20050921001033540 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ADAMS CO |
| Property Address | 9971 HARRISON ST, THORNTON, CO 80229-2867 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | HERITAGE TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0000054835 |
|---|---|
| Date | Jun 17, 2020 |
| Instrument | 2020000054835 |
| Name | CANVAS CU |
|---|---|
| Type | Credit Union |
| Address | LONE TREE, CO 80124 |
| Type | Construction Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 241 Months |
| Due | Jul 1, 2040 |
The 2025 property tax bill for 9971 Harrison St was $1,065.
Source: Adams County assessment roll, as of August 25, 2025
| Type | Name |
|---|---|
| State | Colorado |
| County | Adams County |
| Municipality | Thornton City |
| Unified School District | Mapleton School District 1 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,065.00 | $25,130 Land $5,630 Building $19,500 | $402,000 Land $90,000 Building $312,000 |
| 2023 | $2,952.00 (+4.64%) | $29,900 (+5.62%) Land $5,750 Building $24,150 | $442,000 (+8.51%) Land $85,000 Building $357,000 |
| 2022 | $2,821.00 | $28,310 Land $11,820 Building $16,490 | $407,320 Land $170,000 Building $237,320 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 9971 Harrison St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 2, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 9971 Harrison St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 99.2% of Colorado |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF THORNTON serves 226,465 people · EPA ID CO0101150 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jul 2024 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 3 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 791 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| CenturyLink DSL · Fiber in parts of the area | 140 / 20 |
| Rise Broadband Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Aerux Broadband, T-Mobile.
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