Boulder County property record for 1101 Union Ave, Boulder, CO 80304
| Property Type | Exempt (Full or Partial) |
|---|---|
| Details | 2 bd · 3 ba · 2,273 sqft · built 1984 |
| Lot Size | 0.669 acres (29,185 sqft) |
| Owner | Owner Name on File |
| Last Sale | $1,425,000 (Jul 2007) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-13-1-04-003 |
| Primary APN | 1461-13-1-04-003 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 2,273 sqft Living Area |
| Gross Area | 2,756 sqft |
| 1st Floor Area | 2,273 sqft |
| Year Built | Built 1984 |
|---|---|
| Architectural Style | Ranch |
| Exterior Material | Brick Veneer |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 29,185 sqft (0.669 acres) |
| Garage Type | Attached |
| Garage Area | 483 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air |
|---|
| Account Number | R0033746 |
|---|---|
| Old Parcel Number | 0033746 |
| Street Address | 1101 UNION AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-0713 |
| Property Category | Other |
| Property Type | Other > Exempt (Full or Partial) |
| Local Zoning Code | 1112 |
| Legal Description | LOT 5 BLK 1 SHEETS 2DPT FILE 07-01505-07 |
| Legal Range | 71 |
| Legal Township | 01N |
| Legal Section | 13 |
| Legal Quarter | NE |
| Legal Subdivision | SHEETS 2 - BOV |
| Legal Block | 1 |
| Legal Lot Number | 5 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1017 |
| Census Tract | 12104 |
Source: Boulder County records · APN 1461-13-1-04-003
Assessment roll updated August 25, 2023 · Last verified March 2024
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Owner Name on File |
|---|---|
| Mailing Address | BOULDER, CO 80304 |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jul 27, 2007 · Amount on Record |
| Deed Sale | Jul 27, 2007 · Amount on Record |
| Deed Document Number | 2872115 |
| Record Updated | Jun 07, 2026 |
Source: Boulder County records · Assessment roll updated August 25, 2023 · Last verified March 2024
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
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.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2023 | Additional exemption filed | $142,565 Land $142,565 | $2,127,841 Land $2,127,841 |
Source: FEMA National Flood Hazard Layer as of October 14, 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 |
| 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 |
|
| Wildfire Risk | Moderate above 64% of the US · above 54% of Colorado |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect 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) |
|---|---|
| Ayva Fixed Wireless | 2,500 / 2,500 |
| Xfinity Cable | 2,000 / 250 |
| Live Wire Networks Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: AT&T, Lumen Technologies.
Based on FCC filings for 460 locations within half a mile of this property.
5G (outdoors only) and 4G LTE
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 BOULDER serves 166,080 people |
|---|---|
| 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 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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