Adams County property record for 9999 Downing St, Thornton, CO 80229
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,062 sqft · built 2004 |
| Lot Size | 0.15 acres (6,534 sqft) |
| Owner | Owner Name on Record |
| Last Sale | $249,352 (Jun 2004) |
| Tax Bill | $1,489 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R0144891 |
| Primary APN | R0144891 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Plumbing Fixtures | 13 Plumbing Fixtures |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,062 sqft Living Area |
| 1st Floor Area | 878 sqft |
| 2nd Floor Area | 1,184 sqft |
| Basement Area | 558 sqft |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2004 |
|---|---|
| Architectural Style | Other |
| Exterior Material | Shingles |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 6,534 sqft (0.15 acres) |
| Garage Type | Attached |
| Garage Area | 458 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 126 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air |
| Account Number | R0144891 |
|---|---|
| Old Parcel Number | 171914316001 |
| Street Address | 9999 DOWNING ST |
| City | THORNTON |
| State | CO |
| Zip | 80229-7803 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUB:LAMBERTSON LAKES SUBD BLK:3 LOT:35 |
| Legal Range | 68W |
| Legal Township | 02S |
| Legal Section | 14 |
| Legal Quarter | SE |
| Legal Subdivision | LAMBERTSON LAKES |
| Legal Block | 3 |
| Legal Lot Number | 35 |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | WEST ADAMS |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 9204 |
Source: Adams County records, as of February 9, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Owner Name on Record |
|---|---|
| Mailing Address | 9999 DOWNING ST, THORNTON, CO 80229-7803 |
| Occupancy | Owner Occupied |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 15, 2004 · Amount on Record |
| Deed Sale | Jun 15, 2004 · Amount on Record |
| Deed Document Number | 20040615000491980 |
| Record Updated | Jun 8, 2026 |
Source: Adams County assessment roll, as of August 25, 2025
| Type | Name |
|---|---|
| State | Colorado |
| County | Adams County |
| Municipality | Thornton City |
| Unified School District | Adams 12 Five Star Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,489.00 (-75.41%) | $35,130 (-12.59%) Land $7,630 Building $27,500 | $562,000 (-5.39%) Land $122,000 Building $440,000 |
| 2023 | $6,056.00 (+8.88%) | $40,190 (+9.93%) Land $8,120 Building $32,070 | $594,000 (+12.91%) Land $120,000 Building $474,000 |
| 2022 | $5,562.00 | $36,560 Land $16,120 Building $20,440 | $526,103 Land $232,000 Building $294,103 |
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.
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.
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 630 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| CenturyLink DSL · Fiber in parts of the area | 140 / 20 |
May also be available: Aerux Broadband, LiveWireNet, Verizon.
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