Adams County property record for 9939 Harris St, Thornton, CO 80229
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,504 sqft · built 2000 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $1,346 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1719-14-4-22-029 |
| Primary APN | 1719-14-4-22-029 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Plumbing Fixtures | 12 Plumbing Fixtures |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 2,504 sqft Living Area |
| Gross Area | 3,442 sqft |
| 1st Floor Area | 1,662 sqft |
| 2nd Floor Area | 842 sqft |
| Basement Area | 445 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 2000 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | Split Level |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 6,000 sqft (0.138 acres) |
| Garage Type | Attached |
| Garage Area | 493 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Slab |
| Porch Area | 53 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0117966 |
|---|---|
| Street Address | 9939 HARRIS ST |
| City | THORNTON |
| State | CO |
| Zip | 80229-2491 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUB:HARVEST RIDGE FILING NO 2 BLK:6 LOT:15 |
| Legal Range | 68W |
| Legal Township | 02S |
| Legal Section | 14 |
| Legal Quarter | 4 |
| Legal Subdivision | HARVEST RIDGE FILING NO 2 |
| Legal Block | 6 |
| Legal Lot Number | 15 |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | WEST ADAMS |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 9204 |
9939 Harris St is owned by two individuals who acquired it in June 2015.
Source: Adams County records, as of January 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1743 E 83RD AVE, DENVER, CO 80229-5574 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Feb 1, 2010 |
| Deed Sale | Feb 1, 2010 |
| Prior Sale | Jul 24, 2009 |
| Deed Document Number | 20106689 |
| Last Transfer Date | Jun 9, 2015 |
| Transfer Doc | 0000074754 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 9939 Harris St was $1,346, down 56.8% from the year before.
Source: Adams County assessment roll, as of January 21, 2026
| 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 | $1,346.00 (-56.76%) | $34,540 Land $7,480 Building $27,060 | $508,000 Land $110,000 Building $398,000 |
| 2024 | $3,113.00 (-14.31%) | ||
| 2023 | $3,633.00 (+9.23%) | $36,800 (+10.28%) Land $6,360 Building $30,440 | $544,000 (+13.28%) Land $94,000 Building $450,000 |
| 2022 | $3,326.00 | $33,370 Land $13,060 Building $20,310 | $480,224 Land $188,000 Building $292,224 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 9939 Harris 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.
The area around 9939 Harris St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 716 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 |
May also be available: Aerux Broadband.
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