Boulder County property record for 640 Mapleton Ave, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 2.5 Baths |
| Year Built | Built 1995 |
| Square Footage | 2,922 sqft Living Area |
| Lot Size | 6,892 sqft (0.158 acres) |
| Garage | Detached, 295 sqft |
| Last Sale | $937,000 (2003) |
| Tax Bill | $20,849.00 (2025) |
| Primary APN | 1461-25-4-09-002 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Partial Baths | 2 Partial Baths |
| Total Rooms | 8 Rooms |
| Building Area | 2,922 sqft Living Area |
| Gross Area | 3,186 sqft Gross Area |
| 1st Floor | 1,736 sqft 1st Floor |
| Upper Floors | 1,186 sqft Upper Floors |
| Basement Area | 264 sqft Basement |
| Stories | 2 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1909 |
|---|---|
| Effective Year Built | Effective 1995 |
| Exterior Material | Brick Veneer Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 6,892 sqft (0.158 acres) |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Detached Garage |
| Garage Area | 295 sqft Garage |
| Deck Area | 114 sqft Deck |
| Porch | Porch |
| Porch Area | 256 sqft Porch |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Account Number | R0003051 |
|---|---|
| Street Address | 640 MAPLETON AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-3988 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOTS 16 & 17 BLK 6 MAPLETON |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 25 |
| Legal Subdivision | MAPLETON - BO |
| Legal Block | 6 |
| Legal Lot Number | 16 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 4 |
| Census Block | 4011 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-25-4-09-002
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 | 640 MAPLETON AVE, BOULDER, CO 80304-3988 |
| Owner Type | Owner is a Company |
| Vesting | Trustor/Debtor (Borrower in Default/Foreclosure On Trustee's Deed) |
| Date | Document |
|---|---|
| Oct 16, 2019 | Deed of Trust, Mortgage · Conventional Mortgage CITY NATIONAL BANK |
| Aug 29, 2019 | Warranty Deed, Transfer LAND TITLE GUARANTEE |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20032392161 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 640 MAPLETON AVE, BOULDER, CO 80304-3988 |
| Transaction Type | Mortgage |
| Record Updated | Oct 21, 2022 |
| Title Company | LAND TITLE GUARANTEE CO |
| Name | Verified Name |
|---|
| Document Number | 0003742750 |
|---|---|
| Date | Oct 16, 2019 |
| Instrument | 3742750 |
| Name | CITY NATIONAL BANK |
|---|---|
| Type | Bank |
| Address | LOS ANGELES, CA 90071 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 01, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.5% |
| Adjustable | Document includes a rider for adjustable-rate mortgage with a specific rate change date. |
| Type Change Date | Nov 01, 2029 |
| Change Frequency | Annually |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 7.5% |
| Index | 1-Year CMT |
| Max Rate | 7.5% |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Aug 29, 2019 |
| Property Address | 640 MAPLETON AVE, BOULDER, CO 80304-3988 |
| Document Number | 0003733122 |
| Instrument Date | Aug 28, 2019 |
| Instrument | 3733122 |
| Transaction Type | Transfer |
| Record Updated | Sep 09, 2019 |
| Title Company | LAND TITLE GUARANTEE |
| Amount | Amount Recorded |
|---|---|
| Tax | $285.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 640 MAPLETON AVE BOULDER CO 803043988, BOULDER, CO 80304-3988 |
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 | $237,911 (+8.8%) Land $111,030 Building $126,881 | $3,498,700 (-) Land $1,632,800 Building $1,865,900 | |
| 2025 | $20,849.00 (+4.23%) | $218,669 (-7.07%) Land $102,050 Building $116,619 | $3,498,700 (-0.38%) Land $1,632,800 Building $1,865,900 |
| 2023 | $20,002.00 (+0.43%) | $235,304 (+9.71%) Land $104,607 Building $130,697 | $3,512,000 (+13.8%) Land $1,561,300 Building $1,950,700 |
| 2022 | $19,917.00 | $214,484 Land $78,945 Building $135,539 | $3,086,100 Land $1,135,900 Building $1,950,200 |
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