Boulder County property record for 644 Dewey Ave, Boulder, CO 80304 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1.75 Baths |
| Year Built | Built 1990 |
| Square Footage | 1,694 sqft Living Area |
| Lot Size | 2,897 sqft (0.067 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $1,435,500 (2025) |
| Tax Bill | $7,163.00 (2025) |
| Primary APN | 1461-25-1-29-003 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,694 sqft Living Area |
| 1st Floor | 910 sqft 1st Floor |
| Upper Floors | 784 sqft Upper Floors |
| Stories | 1 Stories |
| Interior Structure | Plaster Interior Structure |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | A-Frame Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 2,897 sqft (0.067 acres) |
| Garage Type | Detached Garage |
| Garage Area | 240 sqft Garage |
| Total Buildings | 2 Total Buildings |
|---|---|
| Deck Area | 56 sqft Deck |
| Porch | Porch |
| Porch Area | 72 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0008392 |
|---|---|
| Street Address | 644 DEWEY AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-3932 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | W 11 FT LOT 3 & E 19 FT LOT 4 BLK 6 NEIKIRK-STEWART |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 25 |
| Legal Subdivision | NEIKIRK-STEWART - BO |
| Legal Block | 6 |
| Legal Lot Number | 3 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 1 |
| Census Block | 1020 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-25-1-29-003
Assessment roll updated June 15, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individuals Owners |
|---|---|
| Mailing Address | 644 DEWEY AVE, BOULDER, CO 80304-3932 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20254090101 |
| Record Refreshed | Sep 20, 2026 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified July 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 | $96,621 (+18.73%) Land $63,505 Building $33,116 | $1,420,900 (+9.12%) Land $933,900 Building $487,000 | |
| 2025 | $7,163.00 (-6.52%) | $81,381 (-11.95%) Land $58,369 Building $23,012 | $1,302,100 (-5.6%) Land $933,900 Building $368,200 |
| 2023 | $7,663.00 (+20.68%) | $92,421 (+35.15%) Land $64,689 Building $27,732 | $1,379,400 (+40.19%) Land $965,500 Building $413,900 |
| 2022 | $6,350.00 | $68,385 Land $46,454 Building $21,931 | $983,960 Land $668,400 Building $315,560 |
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