Adams County property record for 4520 E 121st Pl, Thornton, CO 80241 · Last verified February 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,979 sqft · built 1980 |
| Lot Size | 0.16 acres (6,970 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $1,295 (2025) |
| Deeds & Mortgages | Sep 2025 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | R0011699 |
| Primary APN | R0011699 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Plumbing Fixtures | 11 Plumbing Fixtures |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,979 sqft Living Area |
| 1st Floor Area | 1,031 sqft |
| 2nd Floor Area | 948 sqft |
| Basement Area | 576 sqft |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1980 |
|---|---|
| Architectural Style | Split Level |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 6,970 sqft (0.16 acres) |
| Lot Dimensions | 103 ft deep x 69 ft wide |
| Garage Type | Attached |
| Garage Area | 585 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 480 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air |
| Account Number | R0011699 |
|---|---|
| Old Parcel Number | 157131319012 |
| Street Address | 4520 E 121ST PL |
| City | THORNTON |
| State | CO |
| Zip | 80241-3631 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUB:NORTHAVEN BLK:4 LOT:8 |
| Legal Range | 67W |
| Legal Township | 01S |
| Legal Section | 31 |
| Legal Quarter | NE |
| Legal Subdivision | NORTHAVEN |
| Legal Block | 4 |
| Legal Lot Number | 8 |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | WEST ADAMS |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 8547 |
Source: Adams County records · APN R0011699
Assessment roll updated August 25, 2025 · Last verified February 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 File |
|---|---|
| Co-owner | Verified Secondary Owner |
| Mailing Address | 4520 E 121ST PL, THORNTON, CO 80241-3631 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Sep 22, 2025 |
| Transfer Doc | 0000055239 |
| Record Updated | Jun 08, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ADAMS CO |
| Recording Date | Sep 22, 2025 |
| Property Address | 4520 E 121ST PL, THORNTON, CO 80241-3631 |
| Document Number | 0000055239 |
| Instrument Date | Sep 16, 2025 |
| Instrument | 2025000055239 |
| Transaction Type | Transfer |
| Record Updated | Feb 10, 2026 |
| Title Company | FIRST INTEGRITY TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 4520 E 121ST PL, THORNTON, CO 80241-3631 |
| Document Number | 0000055240 |
|---|---|
| Date | Sep 22, 2025 |
| Instrument | 2025000055240 |
| Name | AMERICAN FINANCING CORP |
|---|---|
| Type | Lending Institution |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 01, 2055 |
Source: Adams County records · Assessment roll updated August 25, 2025 · Last verified February 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Adams County |
| Municipality | Thornton City |
| Unified School District | Adams 12 Five Star Schools (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,295.00 (-66.14%) | $30,560 (-17.36%) Land $6,000 Building $24,560 | $489,000 (-11.41%) Land $96,000 Building $393,000 |
| 2024 | $3,825.00 (-6.11%) | $36,980 (-0.96%) Land $5,760 Building $31,220 | $552,000 (-) Land $86,000 Building $466,000 |
| 2023 | $4,074.00 (+13.36%) | $37,340 (+14.43%) Land $5,820 Building $31,520 | $552,000 (+17.6%) Land $86,000 Building $466,000 |
| 2022 | $3,594.00 | $32,630 Land $11,960 Building $20,670 | $469,381 Land $172,000 Building $297,381 |
Source: FEMA National Flood Hazard Layer, Adams County (08001C), updated October 2, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 820 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Lumen Technologies | Fiber | 8,000 / 8,000 |
| Xfinity | Cable | 2,000 / 250 |
| JAB Wireless | Fixed Wireless (unlicensed) | 300 / 60 |
| Verizon | Fixed Wireless | 300 / 20 |
May also be available at this address: T-Mobile USA, Ting Fiber, BIF IV Intrepid HoldCo, AT&T, Lumen Technologies. Availability varies by address; speeds are provider-advertised maximums, not measured.
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