Boulder County property record for 770 Union Ave, Boulder, CO 80304 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4 ba · 5,110 sqft · built 2000 |
| Lot Size | 0.271 acres (11,784 sqft) |
| Owner | Company Name on File |
| Last Sale | $2,370,000 (Mar 2019) |
| Tax Bill | $17,618 (2025) |
| Deeds & Mortgages | Apr 2021 Mortgage Oct 2025 Line of Credit + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-13-1-12-002 |
| Primary APN | 1461-13-1-12-002 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Half Baths | 3 Half Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 5,110 sqft Living Area |
| Gross Area | 5,656 sqft |
| 1st Floor Area | 1,686 sqft |
| Upper Floors Area | 298 sqft |
| Basement Area | 1,050 sqft |
| Finished Basement | 1,050 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 2000 |
|---|---|
| Effective Year Built | Effective 2013 |
| Architectural Style | A-Frame |
| Exterior Material | Combination |
| Construction Type | Frame |
| Roof Material | Metal |
| Lot Area | 11,784 sqft (0.271 acres) |
| Garage Type | Attached |
| Garage Area | 546 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 156 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Radiant |
| Account Number | R0033991 |
|---|---|
| Street Address | 770 UNION AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-0707 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 2 BLK A WONDERLAND NORTH |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 13 |
| Legal Subdivision | WONDERLAND NORTH - BO |
| Legal Block | A |
| Legal Lot Number | 2 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 12104 |
Source: Boulder County records · APN 1461-13-1-12-002
Assessment roll updated June 15, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 770 UNION AVE, BOULDER, CO 80304-0707 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Date | Document |
|---|---|
| Apr 19, 2021 | Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Oct 22, 2025 | Deed of Trust, Mortgage · Line of Credit FIRSTBANK |
| Jan 27, 2026 | Special Warranty Deed, Transfer · Commercial Mortgage GREAT AMERICAN INSURANCE COMPANY |
| Dec 10, 2019 | Grant Deed, Transfer NOT AVAILABLE |
| Mar 27, 2019 | Special Warranty Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Mar 27, 2019 · Amount on Record |
| Deed Sale | Mar 27, 2019 · Amount on Record |
| Prior Sale | Jul 25, 2012 · Amount on Record |
| Deed Document Number | 20193704165 |
| Prior Transfer Date | Mar 18, 2011 |
| Prior Transfer Doc | 0003142697 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 770 UNION AVE, BOULDER, CO 80304-0707 |
| Transaction Type | Mortgage |
| Record Updated | Feb 11, 2026 |
| Name | Verified Name |
|---|
| Document Number | 0003878055 |
|---|---|
| Date | Apr 19, 2021 |
| Instrument | 3878055 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | 48941 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 01, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 770 UNION AVE, BOULDER, CO 80304-0707 |
| Transaction Type | Mortgage |
| Record Updated | Feb 11, 2026 |
| Name | Verified Name |
|---|---|
| Address | 770 UNION AVE, BOULDER, CO 80304-0707 |
| Document Number | 0004106626 |
|---|---|
| Date | Oct 22, 2025 |
| Instrument | 4106626 |
| Name | FIRSTBANK |
|---|---|
| Type | Bank |
| Address | DENVER, CO 80215 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 120 Months |
| Due | Oct 14, 2035 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jan 27, 2026 |
| Property Address | 770 UNION AVE, BOULDER, CO 80304-0707 |
| Document Number | 0004117868 |
| Map Reference | DOC 03638009 |
| Instrument Date | Jan 26, 2026 |
| Instrument | 4117868 |
| Transaction Type | Transfer |
| Record Updated | Feb 11, 2026 |
| Title Company | LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $2,325.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 2001 WESTERN AVE STE 300, 300, SEATTLE, WA 98121-2164 |
| Document Number | 0004117869 |
|---|---|
| Date | Jan 27, 2026 |
| Instrument | 4117869 |
| Name | GREAT AMERICAN INSURANCE COMPANY |
|---|---|
| Type | Non-Lending Institution |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Dec 10, 2019 |
| Property Address | 770 UNION AVE, BOULDER, CO 80304-0707 |
| Document Number | 0003753903 |
| Instrument Date | Dec 05, 2019 |
| Instrument | 3753903 |
| Transaction Type | Transfer |
| Record Updated | Dec 20, 2019 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 770 UNION AVE BOULDER CO 803040707, BOULDER, CO 80304-0707 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Mar 27, 2019 |
| Property Address | 770 UNION AVE, BOULDER, CO 80304-0707 |
| Document Number | 0003704165 |
| Instrument Date | Mar 25, 2019 |
| Instrument | 3704165 |
| Transaction Type | Transfer |
| Record Updated | Mar 31, 2022 |
| Title Company | 8Z TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $237.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 00000 |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 770 UNION AVE, BOULDER, CO 80304-0707 |
| Document Number | 0003704166 |
|---|---|
| Date | Mar 27, 2019 |
| Instrument | 3704166 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Apr 01, 2049 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 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 | $201,036 (+8.8%) Land $87,972 Building $113,064 | $2,956,400 (-) Land $1,293,700 Building $1,662,700 | |
| 2025 | $17,618.00 (-0.94%) | $184,775 (-11.86%) Land $80,856 Building $103,919 | $2,956,400 (-5.51%) Land $1,293,700 Building $1,662,700 |
| 2023 | $17,785.00 (+16.98%) | $209,630 (+28.05%) Land $88,239 Building $121,391 | $3,128,800 (+32.82%) Land $1,317,000 Building $1,811,800 |
| 2022 | $15,203.00 | $163,714 Land $70,695 Building $93,019 | $2,355,600 Land $1,017,200 Building $1,338,400 |
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 | High above 78% of the US · above 79% of Colorado |
|---|---|
| Wildfire Likelihood | About 1 in 184 per year |
| Exposure | Direct burnable vegetation at the parcel |
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 232 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 |
May also be available at this address: Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.
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