Boulder County property record for 409 Mapleton Ave, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 1.75 Baths |
| Year Built | Built 1960 |
| Square Footage | 2,297 sqft Living Area |
| Lot Size | 5,950 sqft (0.137 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $995,000 (2015) |
| Tax Bill | $9,906.00 (2025) |
| Primary APN | 1461-25-4-06-012 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 7 Rooms |
| Building Area | 2,297 sqft Living Area |
| Gross Area | 2,414 sqft Gross Area |
| 1st Floor | 1,270 sqft 1st Floor |
| Basement Area | 1,144 sqft Basement |
| Finished Basement | 1,027 sqft Finished |
| Unfinished Basement | 117 sqft Unfinished |
| Stories | 1 Stories |
| Interior Structure | Plaster Interior Structure |
| Year Built | Built 1957 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Ranch Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 5,950 sqft (0.137 acres) |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Detached Garage |
| Garage Area | 352 sqft Garage |
| Porch | Porch |
| Porch Area | 108 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0005058 |
|---|---|
| Street Address | 409 MAPLETON AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-3984 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | S 120 FT LOTS 33 & 34 BLK 4 MAPLETON |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 25 |
| Legal Subdivision | MAPLETON - BO |
| Legal Block | 4 |
| Legal Lot Number | 33 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 4 |
| Census Block | 4004 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-25-4-06-012
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 | 409 MAPLETON AVE, BOULDER, CO 80304-3984 |
| 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 | 20153489576 |
| Prior Transfer Date | Jan 27, 2013 |
| Prior Transfer Doc | 0003285116 |
| 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 | $113,037 (+8.8%) Land $101,733 Building $11,304 | $1,662,300 (-) Land $1,496,070 Building $166,230 | |
| 2025 | $9,906.00 (+6.8%) | $103,893 (-6.48%) Land $93,504 Building $10,389 | $1,662,300 (+0.25%) Land $1,496,070 Building $166,230 |
| 2023 | $9,275.00 (+8.75%) | $111,093 (+20.95%) Land $97,197 Building $13,896 | $1,658,100 (+25.46%) Land $1,450,700 Building $207,400 |
| 2022 | $8,529.00 | $91,851 Land $73,350 Building $18,501 | $1,321,600 Land $1,055,400 Building $266,200 |
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