Boulder County property record for 3629 21st St, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 4 Baths |
| Year Built | Built 1995 |
| Square Footage | 5,733 sqft Living Area |
| Lot Size | 33,931 sqft (0.779 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $1,514,000 (2007) |
| Tax Bill | $17,080.00 (2025) |
| Primary APN | 1463-19-1-31-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Partial Baths | 3 Partial Baths |
| Total Rooms | 13 Rooms |
| Building Area | 5,733 sqft Living Area |
| Gross Area | 6,705 sqft Gross Area |
| 1st Floor | 2,037 sqft 1st Floor |
| Upper Floors | 1,663 sqft Upper Floors |
| Basement Area | 2,037 sqft Basement |
| Finished Basement | 2,037 sqft Finished |
| Stories | 2 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | A-Frame Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 33,931 sqft (0.779 acres) |
| Parking Spaces | 4 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 972 sqft Garage |
| Deck Area | 364 sqft Deck |
| Porch | Porch |
| Porch Area | 1,005 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0105368 |
|---|---|
| Street Address | 3629 21ST ST |
| City | BOULDER |
| State | CO |
| Zip | 80304-1607 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 6 21ST/LINDEN |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 19 |
| Legal Subdivision | 21ST/LINDEN SUB - BO |
| Legal Block | 1 |
| Legal Lot Number | 6 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 1 |
| Census Block | 1000 |
| Census Tract | 12103 |
Source: Boulder County records · APN 1463-19-1-31-005
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 Individuals Owners |
|---|---|
| Mailing Address | 3629 21ST ST, BOULDER, CO 80304-1607 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20072880235 |
| Prior Transfer Date | Oct 22, 1997 |
| Prior Transfer Doc | 0001744441 |
| 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, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $194,895 (+8.8%) Land $83,259 Building $111,636 | $2,866,100 (-) Land $1,224,400 Building $1,641,700 | |
| 2025 | $17,080.00 (-1.53%) | $179,131 (-12.43%) Land $76,525 Building $102,606 | $2,866,100 (-6.12%) Land $1,224,400 Building $1,641,700 |
| 2023 | $17,346.00 (+15.61%) | $204,551 (+26.59%) Land $79,924 Building $124,627 | $3,053,000 (+31.32%) Land $1,192,900 Building $1,860,100 |
| 2022 | $15,004.00 | $161,580 Land $63,926 Building $97,654 | $2,324,900 Land $919,800 Building $1,405,100 |
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