Adams County property record for 421 E 134th Ave, Thornton, CO 80241 · Last verified February 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 4 Baths |
| Year Built | Built 1999 |
| Square Footage | 3,476 sqft Living Area |
| Lot Size | 6,970 sqft (0.16 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $345,900 (1999) |
| Tax Bill | $2,250.00 (2025) |
| Primary APN | R0018593 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Plumbing Fixtures | 15 Plumbing Fixtures |
| Total Rooms | 10 Rooms |
| Building Area | 3,476 sqft Living Area |
| 1st Floor | 1,820 sqft 1st Floor |
| 2nd Floor | 1,656 sqft 2nd Floor |
| Basement Area | 1,820 sqft Basement |
| Stories | 2 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Fireplace | Fireplace |
| Fireplaces | 2 Fireplaces |
| Year Built | Built 1999 |
|---|---|
| Architectural Style | Other Style |
| Exterior Material | Aluminum/Vinyl Exterior |
| Construction Type | Frame Construction |
| Roof Construction | Gable Roof Construction |
| Roof Material | Composition Shingle Roof |
| Lot Area | 6,970 sqft (0.16 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 640 sqft Garage |
| Deck Area | 370 sqft Deck |
|---|---|
| Patio Area | 370 sqft Patio |
| Porch | Porch |
| Porch Area | 100 sqft Porch |
| Golf Green | Golf Green |
| Cooling System | Central Cooling |
|---|---|
| Heating System | HVAC Heating |
| Account Number | R0018593 |
|---|---|
| Old Parcel Number | 157327002017 |
| Street Address | 421 E 134TH AVE |
| City | THORNTON |
| State | CO |
| Zip | 80241-1722 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | SUB:ROLLING HILLS 2ND FILING BLK:1 LOT:31 |
| Legal Range | 68W |
| Legal Township | 01S |
| Legal Section | 27 |
| Legal Subdivision | ROLLING HILLS |
| Legal Block | 1 |
| Legal Lot Number | 31 |
| Jurisdiction | ADAMS CO |
| Minor Civil Division | WEST ADAMS |
| Census Blockgroup | 1 |
| Census Block | 1025 |
| Census Tract | 8526 |
Source: Adams County records · APN R0018593
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 Owner on File |
|---|---|
| Mailing Address | 421 E 134TH AVE, THORNTON, CO 80241-1722 |
| Occupancy | Owner Occupied |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 00622042 |
| Deed Book / Page | 5981 / 234 |
| Record Refreshed | Jun 08, 2026 |
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, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $2,250.00 (-65.78%) | $53,070 (-11.96%) Land $10,240 Building $42,830 | $849,000 (-4.71%) Land $163,800 Building $685,200 |
| 2023 | $6,576.00 (+7.98%) | $60,280 (+9.03%) Land $11,080 Building $49,200 | $891,000 (+11.98%) Land $163,800 Building $727,200 |
| 2022 | $6,090.00 | $55,290 Land $22,760 Building $32,530 | $795,674 Land $327,600 Building $468,074 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures