Jefferson County property record for 6645 Union St, Arvada, CO 80004
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 2.75 ba · 1,109 sqft · built 1979 |
| Lot Size | 0.186 acres (8,102 sqft) |
| Owner | Individual Name on File |
| Last Sale | $216,500 (Oct 2004) |
| Tax Bill | $3,530 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 39-054-11-013 |
| Primary APN | 39-054-11-013 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2.75 Baths |
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,109 sqft Living Area |
| Gross Area | 2,456 sqft |
| 1st Floor Area | 1,109 sqft |
| Basement Area | 937 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1979 |
| Architectural Style | Ranch |
| Construction Type | Frame |
| Lot Area | 8,102 sqft (0.186 acres) |
| Garage Type | Attached |
| Garage Area | 333 sqft |
| Porch | Slab |
| Porch Area | 77 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Connected |
| Account Number | 300078662 |
|---|---|
| Street Address | 6645 UNION ST |
| City | ARVADA |
| State | CO |
| Zip | 80004-2425 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SECTION 05 TOWNSHIP 03 RANGE 69 QTR SE SUBDIVISIONCD 850800 SUBDIVISIONNAME WOODLAND VALE FLG #2 BLOCK 007 LOT 0014 SIZE: 8094 TRACT VALUE: .186 |
| Legal Range | 69W |
| Legal Township | 03S |
| Legal Section | 05 |
| Legal Subdivision | WOODLAND VALE FLG #2 |
| Legal Block | 7 |
| Legal Lot Number | 14 |
| Jurisdiction | JEFFERSON CO |
| Township / Civil Division | NORTHEAST JEFFERSON |
| Census Block Group | 1 |
| Census Block | 1020 |
| Census Tract | 9841 |
6645 Union St is owned and occupied by an individual who bought it in October 2004.
Source: Jefferson County records, as of May 6, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 6645 UNION ST, ARVADA, CO 80004-2425 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Oct 22, 2004 · Amount on File |
| Deed Sale | Oct 22, 2004 · Amount on File |
| Prior Sale | Nov 12, 1996 · Amount on File |
| Deed Document Number | 20042116379 |
| Prior Transfer Date | Feb 7, 1998 |
| Prior Transfer Doc | 0000553290 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 6645 Union St was $3,530.
Source: Jefferson County assessment roll, as of April 13, 2026
| Type | Name |
|---|---|
| State | Colorado |
| Municipality | Arvada City |
| County | Jefferson County |
| Unified School District | Jefferson County School District R-1 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $3,530.00 | $34,236 Land $12,763 Building $21,473 | $547,768 Land $204,206 Building $343,562 |
| 2023 | $3,258.00 | $33,590 Land $14,844 Building $18,746 | $556,340 Land $221,553 Building $334,787 |
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 6645 Union St in Zone X, an area of minimal flood risk, though there have been 4 flood claims nearby since 1990.
Source: FEMA National Flood Hazard Layer, effective October 5, 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 |
| Flood Insurance Cost | Premium on File median of 25 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 25 in force |
| Nearby Flood Claims | 4 (1990–2024) |
| Most Recent Claim | Jan 2024 · other causes |
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 6645 Union 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 ARVADA serves 171,610 people · EPA ID CO0130001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | May 2024 |
| Lead | 3 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 4 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 587 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Verizon Fixed Wireless | 300 / 20 |
| CenturyLink DSL · Fiber in parts of the area | 140 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Aerux Broadband, LiveWireNet.
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