Adams County property record for 3520 E 99th Ln, Thornton, CO 80229 · Last verified February 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1984 |
| Square Footage | 868 sqft Living Area |
| Lot Size | 5,663 sqft (0.13 acres) |
| Garage | Attached, 529 sqft |
| Occupancy | Owner Occupied |
| Tax Bill | $845.00 (2025) |
| Primary APN | R0040229 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Plumbing Fixtures | 10 Plumbing Fixtures |
| Total Rooms | 5 Rooms |
| Building Area | 868 sqft Living Area |
| 1st Floor | 868 sqft 1st Floor |
| Basement Area | 850 sqft Basement |
| Stories | 1 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Fireplace | Fireplace |
| Year Built | Built 1984 |
|---|---|
| Architectural Style | Ranch Style |
| Exterior Material | Aluminum/Vinyl Exterior |
| Construction Type | Frame Construction |
| Roof Construction | Gable Roof Construction |
| Roof Material | Composition Shingle Roof |
| Lot Area | 5,663 sqft (0.13 acres) |
| Depth X Width | 98 ft x 57 ft Depth x Width |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 529 sqft Garage |
| Porch | Porch |
| Porch Area | 216 sqft Porch |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air Heating |
| Account Number | R0040229 |
|---|---|
| Old Parcel Number | 171913401020 |
| Street Address | 3520 E 99TH LN |
| City | THORNTON |
| State | CO |
| Zip | 80229-2813 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | SUB:NORTH HILLS FILING NUMBER ONE SUBD BLK:2 LOT:8 |
| Legal Range | 68W |
| Legal Township | 02S |
| Legal Section | 13 |
| Legal Quarter | SW |
| Legal Subdivision | NORTH HILLS FILING NUMBER ONE SUBD |
| Legal Block | 2 |
| Legal Lot Number | 8 |
| Jurisdiction | ADAMS CO |
| Minor Civil Division | WEST ADAMS |
| Census Blockgroup | 1 |
| Census Block | 1011 |
| Census Tract | 9207 |
Source: Adams County records · APN R0040229
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 | 3520 E 99TH LN, THORNTON, CO 80229-2813 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 15000047877 |
| Prior Transfer Date | Oct 31, 2002 |
| Prior Transfer Doc | C1046457 |
| 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 | Mapleton School District 1 (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 | $845.00 (-72.68%) | $19,930 (-36.37%) Land $4,280 Building $15,650 | $419,000 (-9.5%) Land $90,000 Building $329,000 |
| 2023 | $3,093.00 (+10.66%) | $31,320 (+11.7%) Land $5,750 Building $25,570 | $463,000 (+14.79%) Land $85,000 Building $378,000 |
| 2022 | $2,795.00 | $28,040 Land $11,820 Building $16,220 | $403,336 Land $170,000 Building $233,336 |
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