Boulder County property record for 3430 Ash Ave, Boulder, CO 80305
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 2.75 ba · 2,154 sqft · built 1962 |
| Lot Size | 0.166 acres (7,222 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $918,900 (Jun 2024) |
| Tax Bill | $5,356 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 1577-05-2-29-006 |
| Primary APN | 1577-05-2-29-006 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 2.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Building Area | 2,154 sqft Living Area |
| Gross Area | 2,982 sqft |
| 1st Floor Area | 1,878 sqft |
| Basement Area | 851 sqft |
| Finished Basement | 276 sqft |
| Unfinished Basement | 575 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1968 |
| Architectural Style | Split Level |
| Exterior Material | Brick Veneer |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 7,222 sqft (0.166 acres) |
| Garage Type | Attached |
| Garage Area | 253 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0013584 |
|---|---|
| Street Address | 3430 ASH AVE |
| City | BOULDER |
| State | CO |
| Zip | 80305-3432 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 6 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 | 6 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 12507 |
Source: Boulder County records, as of September 18, 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 Record |
|---|---|
| Mailing Address | 3430 ASH AVE, BOULDER, CO 80305-3432 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 3, 2024 · Amount on Record |
| Deed Sale | Jun 3, 2024 · Amount on Record |
| Prior Sale | Feb 22, 1977 |
| Deed Document Number | 20244049236 |
| Prior Transfer Date | Feb 25, 2003 |
| Prior Transfer Doc | 0002404428 |
| Record Updated | Oct 29, 2026 |
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 | $55,440 (+0.2%) Land $33,367 Building $22,073 | $885,300 (-) Land $560,700 Building $324,600 | |
| 2025 | $5,356.00 (+13.76%) | $55,332 (-12.25%) Land $35,044 Building $20,288 | $885,300 (-5.94%) Land $560,700 Building $324,600 |
| 2024 | $4,708.00 (+3.52%) | ||
| 2023 | $4,548.00 (+13.28%) | $63,060 (+25.64%) Land $41,064 Building $21,996 | $941,200 (+30.32%) Land $612,900 Building $328,300 |
| 2022 | $4,015.00 | $50,193 Land $30,455 Building $19,738 | $722,200 Land $438,200 Building $284,000 |
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.
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 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 |
|
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| 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 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 451 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| CenturyLink Fiber | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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