Adams County property record for 3651 E 86th Ave, Thornton, CO 80229
| Property Type | Exempt (Full or Partial) |
|---|---|
| Details | 106,680 sqft · built 1973 |
| Lot Size | 17.3 acres (757,508 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $1,179,599 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R0162823 |
| Primary APN | R0162823 |
|---|---|
| Alternative APNs |
|
| Stories | 1 Story |
|---|---|
| Building Area | 106,680 sqft Total Area |
| Year Built | Built 1973 |
|---|---|
| Architectural Style | Other |
| Lot Area | 757,508 sqft (17.3 acres) |
| Heating System | Space Heater |
|---|---|
| Heating Fuel | Electric |
| Account Number | R0162823 |
|---|---|
| Old Parcel Number | 171925111003 |
| Street Address | 3651 E 86TH AVE |
| City | THORNTON |
| State | CO |
| Zip | 80229-5201 |
| Property Category | Other |
| Property Type | Other > Exempt (Full or Partial) |
| Legal Description | SUB:COLUMBINE WATER TREATMENT PLANT AMENDMENT NO 1 LOT:1A |
| Legal Range | 68W |
| Legal Township | 02S |
| Legal Section | 25 |
| Legal Quarter | NE |
| Legal Subdivision | COLUMBINE WATER TREATMENT PLANT AMENDMEN |
| Legal Lot Number | 1A |
| Jurisdiction | ADAMS CO |
| Township / Civil Division | WEST ADAMS |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 15000 |
Source: Adams County records · APN R0162823
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 Name on File |
|---|---|
| Mailing Address | 9500 CIVIC CENTER DR, THORNTON, CO 80229-4326 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name 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 | 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 | $1,179,599.00 Additional exemption filed | $27,818,110 (-3.23%) Land $818,110 Building $27,000,000 | $103,030,034 (-) Land $3,030,034 Building $100,000,000 |
| 2023 | Additional exemption filed | $28,745,380 (-5.19%) Land $845,380 Building $27,900,000 | $103,030,034 (-1.45%) Land $3,030,034 Building $100,000,000 |
| 2022 | Additional exemption filed | $30,318,060 Land $1,318,060 Building $29,000,000 | $104,545,050 Land $4,545,050 Building $100,000,000 |
Source: FEMA National Flood Hazard Layer as of October 2, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (1990) |
| Most Recent Claim | Jul 1990 · rainfall accumulation |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
May also be available: Aerux, AT&T, T-Mobile USA, Verizon.
Based on FCC filings for 294 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF THORNTON serves 226,465 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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