Boulder County property record for 645 Dewey Ave, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1960 |
| Square Footage | 1,682 sqft Living Area |
| Lot Size | 8,513 sqft (0.195 acres) |
| Tax Bill | $8,281.00 (2025) |
| Primary APN | 1461-25-1-26-018 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Units | 2 Units |
| Building Area | 1,682 sqft Living Area |
| 1st Floor | 608 sqft 1st Floor |
| Upper Floors | 466 sqft Upper Floors |
| Basement Area | 608 sqft Basement |
| Finished Basement | 608 sqft Finished |
| Stories | 2 Stories |
| Interior Structure | Plaster Interior Structure |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1960 |
| Exterior Material | Combination Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 8,513 sqft (0.195 acres) |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0003567 |
|---|---|
| Street Address | 645 DEWEY AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-3931 |
| Property Usage | Residential Property Usage |
| Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | LOTS 39-40 & E 20 FT LOT 38 BLK 3 NEIKIRK-STEWART |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 25 |
| Legal Subdivision | NEIKIRK-STEWART - BO |
| Legal Block | 3 |
| Legal Lot Number | 39 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 1 |
| Census Block | 1013 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-25-1-26-018
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 | Individual Owner on File |
|---|---|
| Mailing Address | PO BOX 17215, BOULDER, CO 80308-0215 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 1984631057 |
| Last Transfer Date | Apr 21, 2015 |
| Transfer Doc | 0003441657 |
| 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 | $92,650 (+8.8%) Land $83,385 Building $9,265 | $1,362,500 (-) Land $1,226,250 Building $136,250 | |
| 2025 | $8,281.00 (-0.01%) | $85,157 (-12.98%) Land $76,641 Building $8,516 | $1,362,500 (-6.72%) Land $1,226,250 Building $136,250 |
| 2023 | $8,282.00 (+21.42%) | $97,860 (+36.22%) Land $88,074 Building $9,786 | $1,460,600 (+38.25%) Land $1,314,540 Building $146,060 |
| 2022 | $6,821.00 | $71,842 Land $64,658 Building $7,184 | $1,056,500 Land $950,850 Building $105,650 |
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