Adams County property record for 3747 E 121st Ave, Thornton, CO 80241
| Property Type | Townhouse |
|---|---|
| Details | 2 bd · 2 ba · 1,132 sqft · built 2000 |
| Lot Size | 0.029 acres (1,281 sqft) |
| Owner | Owner Name on Record |
| Tax Bill | $993 (2025) |
| Deeds & Mortgages | Jan 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | R0161416 |
| Primary APN | R0161416 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Plumbing Fixtures | 8 Plumbing Fixtures |
| Total Rooms | 4 Rooms |
| Units | 6 Units |
| Stories | 2 Stories |
| Building Area | 1,132 sqft Living Area |
| Basement Area | 624 sqft |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2000 |
|---|---|
| Architectural Style | Townhouse |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Foundation Type | Concrete |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 1,281 sqft (0.029 acres) |
| Garage Type | Attached |
| Garage Area | 280 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
|---|---|
| Porch Area | 32 sqft |
| Deck Area | 64 sqft |
| Patio Area | 64 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air |
| Account Number | R0161416 |
|---|---|
| Old Parcel Number | 157336410163 |
| Street Address | 3747 E 121ST AVE |
| City | THORNTON |
| State | CO |
| Zip | 80241-3595 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | SUB:THORNTON RIDGE FILING #1 AMENDMENT #1 BLK:1 LOT:26-A |
| Legal Range | 68W |
| Legal Township | 01S |
| Legal Section | 36 |
| Legal Quarter | SE |
| Legal Subdivision | THORNTON RIDGE FILING #1 AMENDMENT #1 |
| Legal Block | 1 |
| Legal Lot Number | 26-A |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | WEST ADAMS |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 8555 |
Source: Adams County records, as of February 9, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Owner Name on Record |
|---|---|
| Mailing Address | 3991 E 121ST AVE, THORNTON, CO 80241-3597 |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Mar 3, 2011 |
| Transfer Doc | 0000014353 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ADAMS CO |
| Property Address | 3747 E 121ST AVE, THORNTON, CO 80241-3595 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0000004784 |
|---|---|
| Date | Jan 18, 2017 |
| Instrument | 2017000004784 |
| Name | NORTH VALLEY BANK |
|---|---|
| Type | Bank |
| Address | DENVER, CO 80229 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 120 Months |
| Due | Jan 17, 2027 |
Source: Adams County assessment roll, as of August 25, 2025
| 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 | $993.00 (-65.23%) | $23,440 (-10.47%) Land $5,000 Building $18,440 | $375,000 (-3.1%) Land $80,000 Building $295,000 |
| 2023 | $2,856.00 (+24.12%) | $26,180 (+25.32%) Land $3,860 Building $22,320 | $387,000 (+28.74%) Land $57,000 Building $330,000 |
| 2022 | $2,301.00 | $20,890 Land $2,080 Building $18,810 | $300,600 Land $30,000 Building $270,600 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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.
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 570 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| CenturyLink Fiber · DSL in parts of the area | 8,000 / 8,000 |
| Xfinity Cable | 2,000 / 250 |
| Rise Broadband Fixed Wireless | 300 / 60 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: T-Mobile.
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