Boulder County property record for 642 Mapleton Ave, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 4 Baths |
| Year Built | Built 1985 |
| Square Footage | 4,847 sqft Living Area |
| Lot Size | 7,213 sqft (0.166 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $1,555,000 (2011) |
| Tax Bill | $23,676.00 (2025) |
| Primary APN | 1461-25-4-09-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Partial Baths | 3 Partial Baths |
| Total Rooms | 11 Rooms |
| Building Area | 4,847 sqft Living Area |
| Gross Area | 4,997 sqft Gross Area |
| 1st Floor | 1,717 sqft 1st Floor |
| Upper Floors | 1,780 sqft Upper Floors |
| Basement Area | 1,500 sqft Basement |
| Finished Basement | 1,350 sqft Finished |
| Unfinished Basement | 150 sqft Unfinished |
| Stories | 2 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1985 |
| Exterior Material | Combination Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 7,213 sqft (0.166 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Detached Garage |
| Garage Area | 480 sqft Garage |
| Deck Area | 362 sqft Deck |
|---|---|
| Patio Area | 416 sqft Patio |
| Porch | Porch |
| Porch Area | 101 sqft Porch |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Account Number | R0004751 |
|---|---|
| Street Address | 642 MAPLETON AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-3988 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOTS 14-15 BLK 6 MAPLETON |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 25 |
| Legal Subdivision | MAPLETON - BO |
| Legal Block | 6 |
| Legal Lot Number | 14 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 4 |
| Census Block | 4011 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-25-4-09-001
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 | 2 Company Names on File |
|---|---|
| Mailing Address | 642 MAPLETON AVE, BOULDER, CO 80304-3988 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Revocable Trust |
| Date | Document |
|---|---|
| Oct 25, 2023 | Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA NA |
| Nov 26, 2018 | Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20113163089 |
| Last Transfer Date | May 06, 2025 |
| Transfer Doc | 0004086399 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 642 MAPLETON AVE, BOULDER, CO 80304-3988 |
| Transaction Type | Mortgage |
| Record Updated | Nov 17, 2023 |
| Title Company | BOSTON NATIONAL TITLE AGENCY |
| Name | Verified Name |
|---|---|
| Address | 642 MAPLETON AVE, BOULDER, CO 80304-3988 |
| Document Number | 0004026293 |
|---|---|
| Date | Oct 25, 2023 |
| Instrument | 4026293 |
| Name | BANK OF AMERICA NA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 01, 2053 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 6.87% |
| Adjustable | Document includes a rider for adjustable-rate mortgage with a specific rate change date. |
| Type Change Date | Nov 01, 2030 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 11.8% |
| Max Rate | 11.8% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 642 MAPLETON AVE, BOULDER, CO 80304-3988 |
| Document Number | 0003688155 |
| Instrument Date | Nov 26, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Dec 12, 2018 |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenant/Joint Tenant w/ Right Of Survivorship |
| Address | 642 MAPLETON AVE BOULDER CO 803043988, BOULDER, CO 80304-3988 |
| Document Number | 0003688155 |
|---|---|
| Date | Dec 03, 2018 |
| Instrument | 3688155 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Dec 02, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.75% |
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 | $270,164 (+8.8%) Land $113,587 Building $156,577 | $3,973,000 (-) Land $1,670,400 Building $2,302,600 | |
| 2025 | $23,676.00 (+3.29%) | $248,313 (-7.73%) Land $104,400 Building $143,913 | $3,973,000 (-1.08%) Land $1,670,400 Building $2,302,600 |
| 2023 | $22,921.00 (-1.2%) | $269,105 (+7.72%) Land $107,012 Building $162,093 | $4,016,500 (+11.74%) Land $1,597,200 Building $2,419,300 |
| 2022 | $23,199.00 | $249,818 Land $80,759 Building $169,059 | $3,594,500 Land $1,162,000 Building $2,432,500 |
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