Adams County property record for 12855 Roslyn St, Thornton, CO 80602
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,213 sqft · built 2008 |
| Lot Size | 0.16 acres (6,970 sqft) |
| Owner | Owner Name on File |
| Last Sale | $254,700 (Dec 2008) |
| Tax Bill | $1,526 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R0146889 |
| Primary APN | R0146889 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Plumbing Fixtures | 13 Plumbing Fixtures |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,213 sqft Living Area |
| 1st Floor Area | 1,114 sqft |
| 2nd Floor Area | 1,099 sqft |
| Basement Area | 754 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 2008 |
|---|---|
| Architectural Style | Other |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Clay Tile |
| Lot Area | 6,970 sqft (0.16 acres) |
| Garage Type | Attached |
| Garage Area | 484 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air |
| Account Number | R0146889 |
|---|---|
| Old Parcel Number | 157128303027 |
| Street Address | 12855 ROSLYN ST |
| City | THORNTON |
| State | CO |
| Zip | 80602-8428 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUB:THE VILLAGES AT RIVERDALE FILING NO 1 BLK:3 LOT:27 |
| Legal Range | 67W |
| Legal Township | 01S |
| Legal Section | 28 |
| Legal Quarter | SW |
| Legal Subdivision | THE VILLAGES AT RIVERDALE |
| Legal Block | 3 |
| Legal Lot Number | 27 |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | BRIGHTON |
| Census Block Group | 5 |
| Census Block | 5034 |
| Census Tract | 8540 |
The current owner of 12855 Roslyn St bought it in December 2008.
Source: Adams County records, as of February 9, 2026
| Owner of Record | Owner Name on File |
|---|---|
| Mailing Address | 12855 ROSLYN ST, THORNTON, CO 80602-8428 |
| Occupancy | Owner Occupied |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 4, 2008 · Amount on File |
| Deed Sale | Dec 4, 2008 · Amount on File |
| Deed Document Number | 2008000094310 |
| Record Updated | Jun 8, 2026 |
The 2025 property tax bill for 12855 Roslyn St was $1,526.
Source: Adams County assessment roll, as of August 25, 2025
| Type | Name |
|---|---|
| State | Colorado |
| County | Adams County |
| Municipality | Thornton City |
| Unified School District | School District 27J (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,526.00 | $36,000 Land $7,190 Building $28,810 | $576,000 Land $115,000 Building $461,000 |
| 2023 | $4,003.00 (+12.19%) | $41,200 (+13.25%) Land $7,100 Building $34,100 | $609,000 (+16.37%) Land $105,000 Building $504,000 |
| 2022 | $3,568.00 | $36,380 Land $14,600 Building $21,780 | $523,337 Land $210,000 Building $313,337 |
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.
FEMA maps place 12855 Roslyn St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 2, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 1 in force |
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.
The area around 12855 Roslyn St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF THORNTON serves 226,465 people · EPA ID CO0101150 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jul 2024 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 3 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 532 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Rise Broadband Fixed Wireless | 500 / 100 |
| CenturyLink DSL | 140 / 20 |
May also be available: T-Mobile, Verizon.
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