Adams County property record for 3660 E 99th Ln, Thornton, CO 80229 · Last verified August 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2.5 Baths |
| Year Built | Built 1992 |
| Square Footage | 2,530 sqft Living Area |
| Lot Size | 7,546 sqft (0.173 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $234,500 (2013) |
| Tax Bill | $3,405.00 (2025) |
| Primary APN | 1719-13-4-09-024 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Partial Baths | 1 Partial Baths |
| Plumbing Fixtures | 13 Plumbing Fixtures |
| Total Rooms | 7 Rooms |
| Building Area | 2,530 sqft Living Area |
| Gross Area | 3,440 sqft Gross Area |
| 1st Floor | 1,060 sqft 1st Floor |
| 2nd Floor | 1,120 sqft 2nd Floor |
| Basement Area | 780 sqft Basement |
| Finished Basement | 350 sqft Finished |
| Unfinished Basement | 430 sqft Unfinished |
| Stories | 2 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1992 |
|---|---|
| Effective Year Built | Effective 1992 |
| Exterior Material | Aluminum/Vinyl Exterior |
| Construction Type | Frame Construction |
| Roof Construction | Gable Roof Construction |
| Roof Material | Composition Shingle Roof |
| Lot Area | 7,546 sqft (0.173 acres) |
| Depth X Width | 98 ft x 77 ft Depth x Width |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 480 sqft Garage |
| Porch | Porch |
| Porch Area | 108 sqft Porch |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Account Number | R0040409 |
|---|---|
| Street Address | 3660 E 99TH LN |
| City | THORNTON |
| State | CO |
| Zip | 80229-2841 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | SUB:NORTH HILLS FILING NUMBER ONE SUBD BLK:5 LOT:3 |
| Legal Range | 68W |
| Legal Township | 02S |
| Legal Section | 13 |
| Legal Quarter | 4 |
| Legal Subdivision | NORTH HILLS FILING NUMBER ONE SUBD |
| Legal Block | 5 |
| Legal Lot Number | 3 |
| Jurisdiction | ADAMS CO |
| Minor Civil Division | WEST ADAMS |
| Census Blockgroup | 1 |
| Census Block | 1007 |
| Census Tract | 9207 |
Source: Adams County records · APN 1719-13-4-09-024
Assessment roll updated January 21, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3660 E 99TH LN, THORNTON, CO 80229-2841 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 2013102009 |
| Record Refreshed | Sep 20, 2026 |
Source: Adams County records · Assessment roll updated January 21, 2026 · Last verified August 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, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $3,405.00 (-14.04%) | $35,970 (-10.34%) Land $6,120 Building $29,850 | $529,000 (-10.79%) Land $90,000 Building $439,000 |
| 2023 | $3,961.00 (+15.35%) | $40,120 (+16.42%) Land $5,750 Building $34,370 | $593,000 (+19.62%) Land $85,000 Building $508,000 |
| 2022 | $3,434.00 | $34,460 Land $11,820 Building $22,640 | $495,749 Land $170,000 Building $325,749 |
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