Boulder County property record for 823 Maxwell Ave, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2.75 Baths |
| Year Built | Built 1978 |
| Square Footage | 2,956 sqft Living Area |
| Lot Size | 7,440 sqft (0.171 acres) |
| Garage | Detached, 272 sqft |
| Last Sale | $855,000 (2017) |
| Tax Bill | $12,961.00 (2025) |
| Primary APN | 1461-25-1-09-004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.75 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 10 Rooms |
| Units | 2 Units |
| Building Area | 2,956 sqft Living Area |
| Gross Area | 3,500 sqft Gross Area |
| 1st Floor | 1,695 sqft 1st Floor |
| Upper Floors | 1,261 sqft Upper Floors |
| Basement Area | 464 sqft Basement |
| Stories | 2 Stories |
| Interior Structure | Plaster Interior Structure |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1978 |
| Exterior Material | Combination Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 7,440 sqft (0.171 acres) |
| Garage Type | Detached Garage |
| Garage Area | 272 sqft Garage |
| Total Buildings | 2 Total Buildings |
|---|---|
| Deck Area | 102 sqft Deck |
| Porch | Enclosed Porch |
| Porch Area | 208 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0005885 |
|---|---|
| Street Address | 823 MAXWELL AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-3971 |
| Property Usage | Residential Property Usage |
| Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | E 37 FT LOT 12 & 10 FT STRIP ON N & 13 X 140 FT E OF LOT 12 BLK 1 PHILLIPS |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 25 |
| Legal Subdivision | PHILLIPS - BO |
| Legal Block | 1 |
| Legal Lot Number | 12 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 4 |
| Census Block | 4000 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-25-1-09-004
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 | 823 MAXWELL AVE, A, BOULDER, CO 80304-3974 |
| Owner Type | Owner is a Company |
| Date | Document |
|---|---|
| Aug 11, 2021 | Deed of Trust, Mortgage · Conventional Mortgage FIRSTBANK |
| Jul 05, 2017 | Warranty Deed, Transfer FIRST AMERICAN TITLE |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20173601538 |
| Prior Transfer Date | Jun 28, 2017 |
| Prior Transfer Doc | 0003601538 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 823 MAXWELL AVE, BOULDER, CO 80304-3971 |
| Transaction Type | Mortgage |
| Record Updated | Feb 16, 2023 |
| Title Company | LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO |
| Name | Verified Name |
|---|---|
| Investor | Possibly a Property Investor |
| Document Number | 0003906106 |
|---|---|
| Date | Aug 11, 2021 |
| Instrument | 3906106 |
| Name | FIRSTBANK |
|---|---|
| Type | Bank |
| Address | DENVER, CO 80215 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Sep 01, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.87% |
| Adjustable | Document includes a rider for adjustable-rate mortgage with a specific rate change date. |
| Type Change Date | Sep 01, 2028 |
| Change Frequency | Annually |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 5.87% |
| Index | 1-Year CMT |
| Max Rate | 7.87% |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jul 05, 2017 |
| Property Address | 823 MAXWELL AVE, BOULDER, CO 80304-3971 |
| Document Number | 0003601538 |
| Instrument Date | Jun 28, 2017 |
| Instrument | 3601538 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2017 |
| Title Company | FIRST AMERICAN TITLE |
| Amount | Amount Recorded |
|---|---|
| Tax | $85.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | PO BOX 4655 BOULDER CO 803064655, BOULDER, CO 80306-4655 |
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 | $145,138 (+8.8%) Land $115,178 Building $29,960 | $2,134,400 (-) Land $1,693,800 Building $440,600 | |
| 2025 | $12,961.00 (-1.35%) | $133,400 (-11.36%) Land $105,863 Building $27,537 | $2,134,400 (-4.98%) Land $1,693,800 Building $440,600 |
| 2024 | $13,139.00 (+1.83%) | ||
| 2023 | $12,903.00 (+44.93%) | $150,502 (+61.04%) Land $115,253 Building $35,249 | $2,246,300 (+63.44%) Land $1,720,200 Building $526,100 |
| 2022 | $8,903.00 | $93,459 Land $72,842 Building $20,617 | $1,374,400 Land $1,071,200 Building $303,200 |
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