Boulder County property record for 1020 Mapleton Ave, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1950 |
| Square Footage | 5,600 sqft Living Area |
| Lot Size | 20,704 sqft (0.475 acres) |
| Garage | 255 sqft |
| Tax Bill | $25,527.00 (2025) |
| Primary APN | 1461-25-4-19-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 12 Rooms |
| Building Area | 5,600 sqft Living Area |
| Gross Area | 6,581 sqft Gross Area |
| 1st Floor | 2,800 sqft 1st Floor |
| Upper Floors | 2,800 sqft Upper Floors |
| Basement Area | 981 sqft Basement |
| Year Built | Built 1905 |
|---|---|
| Effective Year Built | Effective 1950 |
| Exterior Material | Block Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Tile Roof |
| Lot Area | 20,704 sqft (0.475 acres) |
| Garage Area | 255 sqft Garage |
| Total Buildings | 2 Total Buildings |
|---|---|
| Shed | 1 Shed |
| Deck Area | 1,677 sqft Deck |
| Porch | Porch |
| Porch Area | 1,677 sqft Porch |
| Heating System | Hot Water Heating |
|---|
| Account Number | R0003406 |
|---|---|
| Street Address | 1020 MAPLETON AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-4149 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 1 & E 34.5 FT LOT 2 BLK 151 SQUIRES TO BOULDER O T WEST |
| Legal Subdivision | BOULDER O T EAST & WEST & NORTH - BO |
| Legal Block | 151 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 3 |
| Census Block | 3007 |
| Census Tract | 12204 |
Source: Boulder County records · APN 1461-25-4-19-001
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 | Individual Owner on File |
|---|---|
| Mailing Address | 1020 MAPLETON AVE, BOULDER, CO 80304-4149 |
| Owner Type | Owner is a Company |
| Date | Document |
|---|---|
| Aug 11, 2022 | Bargain and Sale Deed, Transfer |
| Oct 11, 2021 | Deed of Trust, Mortgage · Commercial Mortgage BANK OF COLORADO |
| Apr 27, 2020 | Loan Modification, Mortgage NOT AVAILABLE |
| Mar 18, 2018 | Loan Modification, Mortgage |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Jul 30, 2010 |
| Transfer Doc | 0003099225 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Bargain and Sale Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Aug 11, 2022 |
| Property Address | 1020 MAPLETON AVE, BOULDER, CO 80304-4149 |
| Document Number | 0003976607 |
| Instrument Date | Aug 11, 2022 |
| Instrument | 3976607 |
| Transaction Type | Transfer |
| Record Updated | Aug 30, 2022 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Zero or No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | PO BOX 7357, BOULDER, CO 80306-7357 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 1020 MAPLETON AVE, BOULDER, CO 80304-4149 |
| Transaction Type | Mortgage |
| Record Updated | Oct 27, 2021 |
| Name | Verified Name |
|---|---|
| Address | 1020 MAPLETON AVE, BOULDER, CO 80304-4149 |
| Document Number | 0003919527 |
|---|---|
| Date | Oct 11, 2021 |
| Instrument | 3919527 |
| Name | BANK OF COLORADO |
|---|---|
| Type | Bank |
| Address | BRIGHTON, CO 80601 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Oct 10, 2051 |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 1020 MAPLETON AVE, BOULDER, CO 80304-4149 |
| Document Number | 0003779824 |
| Instrument Date | Apr 27, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Jun 08, 2020 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Address | 1020 MAPLETON AVE BOULDER CO 803044149, BOULDER, CO 80304-4149 |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 1020 MAPLETON AVE, BOULDER, CO 80304-4149 |
| Document Number | 0003653729 |
| Instrument Date | Mar 18, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Aug 31, 2018 |
| Name | Verified Name |
|---|---|
| Address | 1020 MAPLETON AVE BOULDER CO 803044149, BOULDER, CO 80304-4149 |
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 | $298,085 (+8.8%) Land $214,200 Building $83,885 | $4,383,600 (-) Land $3,150,000 Building $1,233,600 | |
| 2025 | $25,527.00 (-13.87%) | $273,975 (-22.52%) Land $196,875 Building $77,100 | $4,383,600 (-16.94%) Land $3,150,000 Building $1,233,600 |
| 2023 | $29,639.00 (+8.24%) | $353,599 (+17.16%) Land $211,620 Building $141,979 | $5,277,600 (+21.53%) Land $3,158,500 Building $2,119,100 |
| 2022 | $27,382.00 | $301,818 Land $149,995 Building $151,823 | $4,342,710 Land $2,158,200 Building $2,184,510 |
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