Boulder County property record for 570 Union Ave, Boulder, CO 80304
| Property Type | Condominium |
|---|---|
| Details | 3 bd · 2.5 ba · 1,123 sqft · built 1989 |
| Lot Size | 0.186 acres (8,089 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $370,000 (May 2006) |
| Tax Bill | $3,693 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-13-1-42-001 |
| Primary APN | 1461-13-1-42-001 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Building Area | 1,123 sqft Living Area |
| Gross Area | 2,017 sqft |
| 1st Floor Area | 523 sqft |
| Upper Floors Area | 600 sqft |
| Basement Area | 518 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | Townhouse |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 8,089 sqft (0.186 acres) |
| Garage Type | Attached |
| Garage Area | 376 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0510380 |
|---|---|
| Street Address | 570 UNION AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-0769 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Legal Description | UNIT 1 570S UNION CONDOMINIUMS |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 13 |
| Legal Subdivision | 570S UNION CONDOS |
| Legal Block | 1 |
| Legal Lot Number | 1 |
| Legal Unit | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 12104 |
Source: Boulder County records, as of June 15, 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 Record |
|---|---|
| Mailing Address | 570 UNION AVE, 1, BOULDER, CO 80304-0769 |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 10, 2006 · Amount on Record |
| Deed Sale | May 10, 2006 · Amount on Record |
| Deed Document Number | 20062775645 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 570 UNION AVE, BOULDER, CO 80304-0769 |
| Transaction Type | Mortgage |
| Record Updated | Apr 15, 2022 |
| Title Company | CAPITAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0003827723 |
|---|---|
| Date | Oct 27, 2020 |
| Instrument | 3827723 |
| Name | COLONIAL NATIONAL MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | FORT WORTH, TX 76102 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 1, 2050 |
Source: Boulder County assessment roll, as of June 15, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $49,395 (+8.8%) Building $49,395 | $726,400 (-) Building $726,400 | |
| 2025 | $3,693.00 (-0.32%) | $45,400 (-3.6%) Building $45,400 | $726,400 (+3.34%) Building $726,400 |
| 2023 | $3,705.00 (-1.78%) | $47,094 (+14.67%) Building $47,094 | $702,897 (+18.95%) Building $702,897 |
| 2022 | $3,772.00 | $41,068 Building $41,068 | $590,900 Building $590,900 |
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 14, 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 Record median of 58 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 63 units insured incl. 5 condo units |
| Nearby Flood Claims | 14 (2013–2015) |
| Claims Outside the SFHA | 6 of 14 |
| Most Recent Claim | May 2015 · Severe Storms, Tornadoes, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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 | High above 77% of the US · above 78% of Colorado |
|---|---|
| Wildfire Likelihood | 0.5% annual chance |
| Exposure | Direct burnable vegetation |
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 BOULDER serves 166,080 people · EPA ID CO0107152 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2024 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | Haloacetic acids resolved · Jul 2017 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 232 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| Xfinity Cable | 2,000 / 250 |
| LiveWireNet Fixed Wireless | 250 / 100 |
May also be available: Verizon.
5G (outdoors only) and 4G LTE
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