Adams County property record for 4380 E 109th Ave, Thornton, CO 80233 · Last verified February 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,307 sqft · built 1978 |
| Lot Size | 0.239 acres (10,454 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $1,187 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R0074445 |
| Primary APN | R0074445 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Plumbing Fixtures | 6 Plumbing Fixtures |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,307 sqft Living Area |
| 1st Floor Area | 1,307 sqft |
| Basement Area | 960 sqft |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1978 |
|---|---|
| Architectural Style | Ranch |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 10,454 sqft (0.239 acres) |
| Lot Dimensions | 114 ft deep x 90 ft wide |
| Garage Type | Attached |
| Garage Area | 462 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 120 sqft |
| Heating System | Baseboard |
|---|---|
| Heating Fuel | Electric |
| Account Number | R0074445 |
|---|---|
| Old Parcel Number | 172107216007 |
| Street Address | 4380 E 109TH AVE |
| City | THORNTON |
| State | CO |
| Zip | 80233-5401 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUB:GRANGE CREEK PHASE 1 PUD FILING NO 4 LOT:1 |
| Legal Range | 67W |
| Legal Township | 02S |
| Legal Section | 07 |
| Legal Quarter | NW |
| Legal Subdivision | GRANGE CREEK |
| Legal Phase | 1 |
| Legal Block | 16 |
| Legal Lot Number | 1 |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | WEST ADAMS |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 8534 |
Source: Adams County records · APN R0074445
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 4380 E 109TH AVE, THORNTON, CO 80233-5401 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| 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 | Adams 12 Five Star Schools (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 | $1,187.00 (-65.92%) | $28,000 (-12.31%) Land $5,940 Building $22,060 | $448,000 (-5.08%) Land $95,000 Building $353,000 |
| 2023 | $3,483.00 (+10.33%) | $31,930 (+11.41%) Land $6,090 Building $25,840 | $472,000 (+14.49%) Land $90,000 Building $382,000 |
| 2022 | $3,157.00 | $28,660 Land $11,400 Building $17,260 | $412,279 Land $164,000 Building $248,279 |
Source: FEMA National Flood Hazard Layer, Adams County (08001C), updated October 2, 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 |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| 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; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 591 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Ting Fiber | Fiber | 2,000 / 2,000 |
| BIF IV Intrepid HoldCo | Fiber | 2,000 / 2,000 |
| Xfinity | Cable | 1,200 / 35 |
| JAB Wireless | Fixed Wireless (unlicensed) | 300 / 60 |
| Lumen Technologies | DSL | 140 / 20 |
May also be available at this address: T-Mobile USA, Verizon, Aerux. Availability varies by address; speeds are provider-advertised maximums, not measured.
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