Boulder County property record for 3435 Ash Ave, Boulder, CO 80305 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 1.5 Baths |
| Architecture Style | Split Level |
| Year Built | Built 1972 |
| Square Footage | 1,320 sqft Living Area |
| Lot Size | 8,925 sqft (0.205 acres) |
| Tax Bill | $4,242.00 (2025) |
Source: Boulder County records · APN 1577-05-2-26-015
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 | 1200 28TH ST, 100, BOULDER, CO 80303-1756 |
| Owner Type | Owner is a Company |
| Vesting | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 08, 1972 |
| Deed Sale | Sep 08, 1972 |
| Deed Doc Number | 197234196 |
| Record Refreshed | 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 and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $48,409 (+8.8%) Land $42,384 Building $6,025 | $711,900 (-) Land $623,300 Building $88,600 | |
| 2025 | $4,242.00 (+20.61%) | $44,494 (+0.16%) Land $38,956 Building $5,538 | $711,900 (+7.38%) Land $623,300 Building $88,600 |
| 2023 | $3,517.00 (+6.87%) | $44,421 (+25.32%) Land $39,979 Building $4,442 | $663,000 (+3%) Land $596,700 Building $66,300 |
| 2022 | $3,291.00 | $35,445 Land $31,970 Building $3,475 | $510,000 Land $460,000 Building $50,000 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
| Primary APN | 1577-05-2-26-015 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,320 sqft Living Area |
| 1st Floor | 888 sqft 1st Floor |
| Basement Area | 432 sqft Basement |
| Finished Basement | 432 sqft Finished |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1972 |
| Architectural Style | Split Level Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 8,925 sqft (0.205 acres) |
| Patio Area | 100 sqft Patio |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0013953 |
|---|---|
| Street Address | 3435 ASH AVE |
| City | BOULDER |
| State | CO |
| Zip | 80305-3431 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 15 WILLIAM MARTIN HOMESTEAD REPLAT BLK A |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 05 |
| Legal Subdivision | WILLIAM MARTIN HOMESTEAD RPLT BLK A |
| Legal Block | A |
| Legal Lot Number | 15 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 1 |
| Census Block | 1014 |
| Census Tract | 12507 |
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