Boulder County property record for 3440 Ash Ave, Boulder, CO 80305
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.25 ba · 2,174 sqft · built 1962 |
| Lot Size | 0.172 acres (7,493 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $420,000 (Aug 2013) |
| Tax Bill | $5,285 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 1577-05-2-29-005 |
| Primary APN | 1577-05-2-29-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.25 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,174 sqft Living Area |
| Gross Area | 2,828 sqft |
| 1st Floor Area | 1,204 sqft |
| Basement Area | 1,204 sqft |
| Finished Basement | 970 sqft |
| Unfinished Basement | 234 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Ranch |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Other |
| Lot Area | 7,493 sqft (0.172 acres) |
| Garage Type | Attached |
| Garage Area | 420 sqft |
| Parking Spaces | 2 Parking Spaces |
| Patio Area | 198 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0012865 |
|---|---|
| Street Address | 3440 ASH AVE |
| City | BOULDER |
| State | CO |
| Zip | 80305-3432 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 5 BLK 2 WILLIAM MARTIN HOMESTEAD |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 05 |
| Legal Subdivision | WILLIAM MARTIN HOMESTEAD - BO |
| Legal Block | 2 |
| Legal Lot Number | 5 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 12507 |
Source: Boulder County records · APN 1577-05-2-29-005
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 3440 ASH AVE, BOULDER, CO 80305-3432 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 08, 2013 · Amount on Record |
| Deed Sale | Aug 08, 2013 · Amount on Record |
| Prior Sale | Nov 04, 2003 · Amount on Record |
| Deed Document Number | 20133334322 |
| Record Updated | Sep 20, 2026 |
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 | $60,309 (+8.8%) Land $38,835 Building $21,474 | $886,900 (-) Land $571,100 Building $315,800 | |
| 2025 | $5,285.00 (+2.13%) | $55,432 (-12.86%) Land $35,694 Building $19,738 | $886,900 (-6.59%) Land $571,100 Building $315,800 |
| 2023 | $5,175.00 (+11.89%) | $63,616 (+27.73%) Land $41,828 Building $21,788 | $949,500 (+32.5%) Land $624,300 Building $325,200 |
| 2022 | $4,625.00 | $49,804 Land $31,025 Building $18,779 | $716,600 Land $446,400 Building $270,200 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), as of October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130125071, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| 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 25 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 25 in force |
| Nearby Flood Claims | 16 (1995–2013) |
| Claims Outside the SFHA | 2 of 16 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
| Wildfire Risk | Low lower than 80% of the US · lower than 91% of Colorado |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 |
| Lumen Technologies Fiber | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Live Wire Networks Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Based on FCC filings for 451 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System, water system CO0107152, 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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