Boulder County property record for 1040 Mapleton Ave, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2.5 Baths |
| Architecture Style | A-Frame |
| Year Built | Built 1980 |
| Square Footage | 5,146 sqft Living Area |
| Lot Size | 35,281 sqft (0.81 acres) |
| Garage | Detached, 825 sqft |
| Tax Bill | $39,374.00 (2025) |
| Primary APN | 1461-25-4-19-019 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 8 Rooms |
| Building Area | 5,146 sqft Living Area |
| Gross Area | 6,757 sqft Gross Area |
| 1st Floor | 2,349 sqft 1st Floor |
| Upper Floors | 2,797 sqft Upper Floors |
| Basement Area | 1,611 sqft Basement |
| Stories | 2 Stories |
| Interior Structure | Plaster Interior Structure |
| Year Built | Built 1905 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | A-Frame Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Tile Roof |
| Lot Area | 35,281 sqft (0.81 acres) |
| Parking Spaces | 3 Parking Spaces |
| Garage Type | Detached Garage |
| Garage Area | 825 sqft Garage |
| Porch | Porch |
| Porch Area | 702 sqft Porch |
| Heating System | Hot Water Heating |
|---|
| Account Number | R0006500 |
|---|---|
| Street Address | 1040 MAPLETON AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-4149 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | PT N & E OF DITCH & PT N & W OF DITCH OUTLOT 9 SQUIRES TO BOULDER O T WEST BLK 151 & TR 827 30-1N-70 |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 30 |
| Legal Subdivision | BOULDER O T EAST & WEST & NORTH - BO |
| Legal Tract | 82 |
| Legal Block | 151 |
| Legal Lot Number | 9 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 3 |
| Census Block | 3007 |
| Census Tract | 12204 |
Source: Boulder County records · APN 1461-25-4-19-019
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 | PO BOX 1701, BOULDER, CO 80306-1701 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 1988897721 |
| 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 | $449,290 (+8.8%) Land $284,172 Building $165,118 | $6,607,200 (-) Land $4,179,000 Building $2,428,200 | |
| 2025 | $39,374.00 (+3.4%) | $412,951 (-7.12%) Land $261,188 Building $151,763 | $6,607,200 (-0.43%) Land $4,179,000 Building $2,428,200 |
| 2023 | $38,078.00 (+12.82%) | $444,612 (+22.33%) Land $276,248 Building $168,364 | $6,636,000 (+26.9%) Land $4,123,100 Building $2,512,900 |
| 2022 | $33,750.00 | $363,443 Land $195,802 Building $167,641 | $5,229,400 Land $2,817,300 Building $2,412,100 |
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