Adams County property record for 4355 E 123rd Ave, Thornton, CO 80241
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,538 sqft · built 1981 |
| Lot Size | 0.22 acres (9,576 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $301,000 (Dec 2016) |
| Tax Bill | $1,250 (2025) |
| Deeds & Mortgages | Jul 2019 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1571-31-3-02-004 |
| Primary APN | 1571-31-3-02-004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Plumbing Fixtures | 9 Plumbing Fixtures |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,538 sqft Living Area |
| Gross Area | 1,994 sqft |
| 1st Floor Area | 1,538 sqft |
| Basement Area | 744 sqft |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1981 |
|---|---|
| Effective Year Built | Effective 2017 |
| Architectural Style | Bi-Level |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 9,576 sqft (0.22 acres) |
| Lot Dimensions | 133 ft deep x 72 ft wide |
| View / Lot | Open Space |
| Garage Type | Attached |
| Garage Area | 456 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Wood Porch |
| Deck Area | 280 sqft |
| Patio Area | 280 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0011491 |
|---|---|
| Street Address | 4355 E 123RD AVE |
| City | THORNTON |
| State | CO |
| Zip | 80241-3621 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUB:NORTHAVEN BLK:16 LOT:4 |
| Legal Range | 67W |
| Legal Township | 01S |
| Legal Section | 31 |
| Legal Quarter | 3 |
| Legal Subdivision | NORTHAVEN |
| Legal Block | 16 |
| Legal Lot Number | 4 |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | WEST ADAMS |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 8547 |
Source: Adams County records, as of January 21, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 4355 E 123RD AVE, THORNTON, CO 80241-3621 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 7, 2016 · Amount on Record |
| Deed Sale | Dec 7, 2016 · Amount on Record |
| Prior Sale | Jun 12, 2014 · Amount on Record |
| Deed Document Number | 2016106322 |
| Prior Transfer Date | May 30, 2002 |
| Prior Transfer Doc | 00C0981573 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ADAMS CO |
| Property Address | 4355 E 123RD AVE, THORNTON, CO 80241-3621 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIRST INTEGRITY TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000056945 |
|---|---|
| Date | Jul 19, 2019 |
| Instrument | 2019000056945 |
| Name | BROKER SOLUTIONS INC |
|---|---|
| Type | Funding / Finance Company |
| Address | TUSTIN, CA 92780 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 1, 2049 |
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 | $1,250.00 (-60.68%) | $32,100 (-6.79%) Land $6,530 Building $25,570 | $472,000 (-7.27%) Land $96,000 Building $376,000 |
| 2024 | $3,179.00 (-15.36%) | ||
| 2023 | $3,756.00 (+9.31%) | $34,440 (+10.38%) Land $5,820 Building $28,620 | $509,000 (+13.41%) Land $86,000 Building $423,000 |
| 2022 | $3,436.00 | $31,200 Land $11,960 Building $19,240 | $448,812 Land $172,000 Building $276,812 |
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.
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 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
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
Search by:
By searching, you agree to: Terms • Privacy • Disclosures