Boulder County property record for 1820 Mapleton Ave, Unit A, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 1.5 Baths |
| Year Built | Built 1975 |
| Square Footage | 1,924 sqft Living Area |
| Lot Size | 7,463 sqft (0.171 acres) |
| Garage | Attached, 528 sqft |
| Last Sale | $454,000 (2002) |
| Primary APN | 1463-30-5-08-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 9 Rooms |
| Building Area | 1,924 sqft Living Area |
| Gross Area | 2,452 sqft Gross Area |
| 1st Floor | 1,184 sqft 1st Floor |
| Upper Floors | 740 sqft Upper Floors |
| Stories | 2 Stories |
| Interior Structure | Plaster Interior Structure |
| Year Built | Built 1890 |
|---|---|
| Effective Year Built | Effective 1975 |
| Exterior Material | Combination Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 7,463 sqft (0.171 acres) |
| Garage Type | Attached Garage |
| Garage Area | 528 sqft Garage |
| Total Buildings | 2 Total Buildings |
| Porch | Porch |
| Porch Area | 241 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0004651 |
|---|---|
| Street Address | 1820 MAPLETON AVE, A |
| City | BOULDER |
| State | CO |
| Zip | 80304-4257 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 4 BLK 143 BOULDER EAST O T & LOT 3 BLK 22 NORTH |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 30 |
| Legal Subdivision | BOULDER O T EAST & WEST & NORTH - BO |
| Legal Block | 143,2 |
| Legal Lot Number | 4 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 1 |
| Census Block | 1020 |
| Census Tract | 12205 |
Source: Boulder County records · APN 1463-30-5-08-005
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 | 1820 MAPLETON AVE, BOULDER, CO 80304-4258 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20022296657 |
| Last Transfer Date | Nov 18, 2004 |
| Transfer Doc | 0002645940 |
| 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 | $118,626 (+8.8%) Land $75,392 Building $43,234 | $1,744,500 (-) Land $1,108,700 Building $635,800 | |
| 2025 | $10,476.00 (+3.36%) | $109,032 (-9.27%) Land $69,294 Building $39,738 | $1,744,500 (-2.74%) Land $1,108,700 Building $635,800 |
| 2023 | $10,135.00 (+20.93%) | $120,178 (+34.35%) Land $72,970 Building $47,208 | $1,793,700 (+39.36%) Land $1,089,100 Building $704,600 |
| 2022 | $8,381.00 | $89,453 Land $56,948 Building $32,505 | $1,287,100 Land $819,400 Building $467,700 |
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