Boulder County property record for 844 Union Ave, Boulder, CO 80304 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 5 ba · 5,020 sqft · built 2013 |
| Lot Size | 0.177 acres (7,708 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $1,800,000 (Mar 2020) |
| Tax Bill | $16,685 (2025) |
| Deeds & Mortgages | Jan 2024 Transfer Nov 2018 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-13-1-46-002 |
| Primary APN | 1461-13-1-46-002 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 5 Baths |
| Half Baths | 3 Half Baths |
| Total Rooms | 13 Rooms |
| Stories | 2 Stories |
| Building Area | 5,020 sqft Living Area |
| Gross Area | 5,484 sqft |
| 1st Floor Area | 1,586 sqft |
| Basement Area | 1,678 sqft |
| Finished Basement | 1,594 sqft |
| Unfinished Basement | 84 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 2013 |
|---|---|
| Effective Year Built | Effective 2013 |
| Architectural Style | A-Frame |
| Exterior Material | Combination |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 7,708 sqft (0.177 acres) |
| Garage Type | Attached |
| Garage Area | 380 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 52 sqft |
| Deck Area | 304 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0601935 |
|---|---|
| Street Address | 844 UNION AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-0709 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 3B GWEN REPLAT A |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 13 |
| Legal Subdivision | GWEN REPLAT A |
| Legal Block | 1 |
| Legal Lot Number | 3B |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 12104 |
Source: Boulder County records · APN 1461-13-1-46-002
Assessment roll updated June 15, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 844 UNION AVE, BOULDER, CO 80304-0709 |
| Owner Type | Company |
| Vesting | Married Couple |
| Date | Document |
|---|---|
| Jan 24, 2024 | Intrafamily Transfer, Transfer |
| Nov 19, 2018 | Deed of Trust, Mortgage · Commercial Mortgage ZB NA |
| Mar 03, 2020 | Warranty Deed, Transfer HILLSBOROUGH TITLE INC, HTC |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 03, 2020 · Amount on Record |
| Deed Sale | Mar 03, 2020 · Amount on Record |
| Deed Document Number | 20203769736 |
| Last Transfer Date | Jan 16, 2024 |
| Transfer Doc | 0004034749 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jan 24, 2024 |
| Property Address | 844 UNION AVE, BOULDER, CO 80304-0709 |
| Document Number | 0004034749 |
| Map Reference | DOC 3332503 |
| Instrument Date | Jan 16, 2024 |
| Instrument | 4034749 |
| Transaction Type | Transfer |
| Record Updated | Feb 13, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 844 UNION AVE, BOULDER, CO 80304-0709 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 844 UNION AVE, BOULDER, CO 80304-0709 |
| Transaction Type | Mortgage |
| Record Updated | Mar 31, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0003686354 |
|---|---|
| Date | Nov 19, 2018 |
| Instrument | 3686354 |
| Name | ZB NA |
|---|---|
| Type | Bank |
| Address | BOULDER, CO 80301 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Oct 31, 2048 |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Mar 03, 2020 |
| Property Address | 844 UNION AVE, BOULDER, CO 80304-0709 |
| Document Number | 0003769736 |
| Instrument Date | Mar 02, 2020 |
| Instrument | 3769736 |
| Transaction Type | Transfer |
| Record Updated | Mar 17, 2020 |
| Title Company | HILLSBOROUGH TITLE INC, HTC |
| Amount | Amount Recorded |
|---|---|
| Tax | $180.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 844 UNION AVE BOULDER CO 803040709, BOULDER, CO 80304-0709 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified August 2026
| 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 |
|---|---|---|---|
| 2026 | $190,393 (+8.8%) Land $71,148 Building $119,245 | $2,799,900 (-) Land $1,046,300 Building $1,753,600 | |
| 2025 | $16,685.00 (+0.2%) | $174,994 (-10.94%) Land $65,394 Building $109,600 | $2,799,900 (-4.53%) Land $1,046,300 Building $1,753,600 |
| 2023 | $16,651.00 (+41.75%) | $196,498 (+55.33%) Land $71,362 Building $125,136 | $2,932,800 (+61.13%) Land $1,065,100 Building $1,867,700 |
| 2022 | $11,747.00 | $126,504 Land $57,178 Building $69,326 | $1,820,200 Land $822,700 Building $997,500 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130121041, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Flood Insurance Cost | Premium on Record median of 58 individual NFIP policies nearby |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 63 units insured 5 under condo master policies |
| Nearby Flood Claims | 14 (2013–2015) |
| Claims Outside the SFHA | 6 of 14 |
| Most Recent Claim | May 2015, other causes, Severe Storms, Tornadoes, Flooding, Landslides, And Mudslides |
| Claims By Storm |
|
| Wildfire Risk | Moderate above 64% of the US · above 54% of Colorado |
|---|---|
| Wildfire Likelihood | About 1 in 437 per year |
| 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, availability as of December 31, 2025 · Published October 2026 · based on 460 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Ayva | Fixed Wireless (unlicensed) | 2,500 / 2,500 |
| Xfinity | Cable | 2,000 / 250 |
| Live Wire Networks | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
May also be available at this address: Lumen Technologies, AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.
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