Boulder County property record for 1030 Union Ave, Boulder, CO 80304
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3.25 ba · 2,395 sqft · built 1984 |
| Lot Size | 0.161 acres (7,020 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,456,825 (Jul 2021) |
| Tax Bill | $10,031 (2025) |
| Deeds & Mortgages | Jul 2021 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-13-1-07-004 |
| Primary APN | 1461-13-1-07-004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,395 sqft Living Area |
| Gross Area | 2,895 sqft |
| 1st Floor Area | 944 sqft |
| Upper Floors Area | 992 sqft |
| Basement Area | 672 sqft |
| Finished Basement | 459 sqft |
| Unfinished Basement | 213 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 2002 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 7,020 sqft (0.161 acres) |
| Garage Type | Attached |
| Garage Area | 287 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Porch Area | 304 sqft |
| Deck Area | 380 sqft |
| Cooling System | Evaporative |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0095520 |
|---|---|
| Street Address | 1030 UNION AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-0712 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 4 DIGIACOMO |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 13 |
| Legal Subdivision | DIGIACOMO SUB - BO |
| Legal Block | 1 |
| Legal Lot Number | 4 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1018 |
| Census Tract | 12104 |
1030 Union Ave is owned and occupied by two individuals who bought it in July 2021.
Source: Boulder County records, as of September 18, 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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 1030 UNION AVE, BOULDER, CO 80304-0712 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 14, 2021 · Amount on File |
| Deed Sale | Jul 14, 2021 · Amount on File |
| Prior Sale | May 23, 2016 · Amount on File |
| Deed Document Number | 20213899752 |
| Prior Transfer Date | Oct 22, 2009 |
| Prior Transfer Doc | 0003041813 |
| Record Updated | Oct 29, 2026 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jul 14, 2021 |
| Property Address | 1030 UNION AVE, BOULDER, CO 80304-0712 |
| Document Number | 0003899752 |
| Instrument Date | Jul 9, 2021 |
| Instrument | 3899752 |
| Transaction Type | Transfer |
| Record Updated | Mar 31, 2022 |
| Title Company | LAND TITLE GUARANTEE |
| Amount | Amount on Record |
|---|---|
| Tax | $145.68 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 1030 UNION AVE, 1030, BOULDER, CO 80304-0712 |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 1030 UNION AVE, BOULDER, CO 80304-0712 |
The 2025 property tax bill for 1030 Union Ave was $10,031.
Source: Boulder County assessment roll, as of September 18, 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 | $109,704 (+4.28%) Land $63,138 Building $46,566 | $1,683,300 (-) Land $998,500 Building $684,800 | |
| 2025 | $10,031.00 | $105,206 Land $62,406 Building $42,800 | $1,683,300 Land $998,500 Building $684,800 |
| 2023 | $10,043.00 (+20.32%) | $119,984 (+33.48%) Land $68,106 Building $51,878 | $1,790,800 (+38.46%) Land $1,016,500 Building $774,300 |
| 2022 | $8,347.00 | $89,891 Land $54,564 Building $35,327 | $1,293,400 Land $785,100 Building $508,300 |
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 1030 Union Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File 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.
Wildfire risk around 1030 Union Ave is moderate, ranking above 64% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 64% of the US · above 54% of Colorado |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect 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 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 460 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, CenturyLink.
5G (outdoors only) and 4G LTE
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