Boulder County property record for 520 Iris Ave, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1980 |
| Square Footage | 1,871 sqft Living Area |
| Lot Size | 8,791 sqft (0.202 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $137,500 (1991) |
| Tax Bill | $8,371.00 (2025) |
| Primary APN | 1461-24-4-00-037 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Building Area | 1,871 sqft Living Area |
| Gross Area | 2,102 sqft Gross Area |
| 1st Floor | 1,241 sqft 1st Floor |
| Upper Floors | 630 sqft Upper Floors |
| Stories | 2 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1980 |
| Exterior Material | Brick Veneer Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 8,791 sqft (0.202 acres) |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 231 sqft Garage |
| Patio Area | 99 sqft Patio |
| Porch | Porch |
| Porch Area | 250 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0009217 |
|---|---|
| Street Address | 520 IRIS AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-1752 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | TRACT 402-D-14 BO 24-1N-71 BOOK 997 PAGE 472 BCR |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 24 |
| Legal Subdivision | TR, NBR 101-103,105,107,109,170 |
| Legal Tract | 402-D-14 |
| Legal Block | 2 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 2 |
| Census Block | 2011 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-24-4-00-037
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 | 520 IRIS AVE, BOULDER, CO 80304-1752 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 19911097423 |
| 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 and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $102,320 (+8.8%) Land $92,088 Building $10,232 | $1,504,700 (-) Land $1,354,230 Building $150,470 | |
| 2025 | $8,371.00 (+1.64%) | $94,043 (-5.06%) Land $84,639 Building $9,404 | $1,504,700 (+1.77%) Land $1,354,230 Building $150,470 |
| 2023 | $8,236.00 (+10.11%) | $99,060 (+22.97%) Land $59,436 Building $39,624 | $1,478,500 (+27.56%) Land $887,100 Building $591,400 |
| 2022 | $7,480.00 | $80,558 Land $72,502 Building $8,056 | $1,159,100 Land $1,043,190 Building $115,910 |
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