Adams County property record for 7643 E 121st Dr, Thornton, CO 80602 · Last verified February 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,948 sqft · built 2007 |
| Lot Size | 0.333 acres (14,545 sqft) |
| Owner | Individual Name on File |
| Last Sale | $348,848 (Jul 2007) |
| Tax Bill | $1,373 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R0163865 |
| Primary APN | R0163865 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Plumbing Fixtures | 11 Plumbing Fixtures |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,948 sqft Living Area |
| 1st Floor Area | 1,948 sqft |
| Basement Area | 1,948 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 2007 |
|---|---|
| Architectural Style | Ranch |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 14,545 sqft (0.333 acres) |
| Garage Type | Attached |
| Garage Area | 618 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Account Number | R0163865 |
|---|---|
| Old Parcel Number | 157133313009 |
| Street Address | 7643 E 121ST DR |
| City | THORNTON |
| State | CO |
| Zip | 80602-8184 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUB:KING RANCH ESTATES SUBDIVISION FILING #1 BLK:14 LOT:9 |
| Legal Range | 67W |
| Legal Township | 01S |
| Legal Section | 33 |
| Legal Quarter | SW |
| Legal Subdivision | KING RANCH ESTATES SUBDIVISION FILING #1 |
| Legal Block | 14 |
| Legal Lot Number | 9 |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | WEST ADAMS |
| Census Block Group | 1 |
| Census Block | 1032 |
| Census Tract | 8551 |
Source: Adams County records · APN R0163865
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 | 7643 E 121ST DR, THORNTON, CO 80602-8184 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jul 18, 2007 · Amount on Record |
| Deed Sale | Jul 18, 2007 · Amount on Record |
| Deed Document Number | 2007000068809 |
| Record Updated | 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 | School District 27J (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 | $1,373.00 (-68.98%) | $32,380 (-27.92%) Land $6,290 Building $26,090 | $618,000 (-6.93%) Land $120,000 Building $498,000 |
| 2023 | $4,426.00 (+13.23%) | $44,920 (+14.3%) Land $8,120 Building $36,800 | $664,000 (+17.42%) Land $120,000 Building $544,000 |
| 2022 | $3,909.00 | $39,300 Land $17,100 Building $22,200 | $565,488 Land $246,000 Building $319,488 |
Source: FEMA National Flood Hazard Layer, Adams County (08001C), updated October 2, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080010085511, refreshed September 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 |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 2 (2013) |
| Claims Outside the SFHA | 1 of 2 |
| Most Recent Claim | Sep 2013, Severe Storms, Flooding, Landslides, And Mudslides |
| Claims By Storm |
|
| 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; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 133 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| JAB Wireless | Fixed Wireless (unlicensed) | 500 / 100 |
| Verizon | Fixed Wireless | 300 / 20 |
| Lumen Technologies | DSL | 140 / 20 |
| AT&T | Fixed Wireless | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
May also be available at this address: Aerux. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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