Adams County property record for 4425 E 123rd Ave, Thornton, CO 80241
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,556 sqft · built 1980 |
| Lot Size | 0.196 acres (8,549 sqft) |
| Owner | Individual Name on File |
| Last Sale | $114,750 (Aug 2008) |
| Tax Bill | $1,055 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1571-31-3-02-011 |
| Primary APN | 1571-31-3-02-011 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Plumbing Fixtures | 9 Plumbing Fixtures |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,556 sqft Living Area |
| Gross Area | 2,033 sqft |
| 1st Floor Area | 520 sqft |
| 2nd Floor Area | 576 sqft |
| Basement Area | 460 sqft |
| Finished Basement | 460 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Split Level |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 8,549 sqft (0.196 acres) |
| Lot Dimensions | 103 ft deep x 83 ft wide |
| View / Lot | Open Space |
| Garage Type | Attached |
| Garage Area | 477 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Wood Porch |
| Deck Area | 288 sqft |
| Patio Area | 288 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0011498 |
|---|---|
| Street Address | 4425 E 123RD AVE |
| City | THORNTON |
| State | CO |
| Zip | 80241-3645 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUB:NORTHAVEN BLK:16 LOT:11 |
| Legal Range | 67W |
| Legal Township | 01S |
| Legal Section | 31 |
| Legal Quarter | 3 |
| Legal Subdivision | NORTHAVEN |
| Legal Block | 16 |
| Legal Lot Number | 11 |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | WEST ADAMS |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 8547 |
4425 E 123rd Ave is owned by an individual who bought it in August 2008.
Source: Adams County records, as of May 22, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 2409 E 148TH DR, THORNTON, CO 80602-7335 |
| Owner Type | Individual |
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 | Aug 28, 2008 · Amount on File |
| Deed Sale | Aug 28, 2008 · Amount on File |
| Prior Sale | May 23, 2008 |
| Deed Document Number | 200869291 |
| Prior Transfer Date | Apr 25, 2002 |
| Prior Transfer Doc | 00C0963104 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4425 E 123rd Ave was $1,055, down 61.1% 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 | Adams 12 Five Star Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,055.00 (-61.07%) | $27,070 Land $6,530 Building $20,540 | $398,000 Land $96,000 Building $302,000 |
| 2024 | $2,710.00 (-16.92%) | ||
| 2023 | $3,262.00 (+12.75%) | $29,900 (+13.82%) Land $5,820 Building $24,080 | $442,000 (+16.98%) Land $86,000 Building $356,000 |
| 2022 | $2,893.00 | $26,270 Land $11,960 Building $14,310 | $377,855 Land $172,000 Building $205,855 |
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 4425 E 123rd Ave in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective October 2, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| 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 4425 E 123rd Ave 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 719 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Rise Broadband Fixed Wireless | 500 / 100 |
| Verizon Fixed Wireless | 300 / 20 |
| CenturyLink DSL · Fiber in parts of the area | 140 / 20 |
May also be available: AT&T, T-Mobile.
5G (outdoors only) and 4G LTE
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