Boulder County property record for 2021 Walnut St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,205 sqft · built 1920 |
| Lot Size | 0.158 acres (6,926 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,427,500 (Jul 2017) |
| Tax Bill | $4,802 (2015) |
| Flood Zone | Zone X (moderate risk) |
| APN | 1463-30-4-29-009 |
| Primary APN | 1463-30-4-29-009 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Building Area | 2,205 sqft Living Area |
| 1st Floor Area | 1,374 sqft |
| Upper Floors Area | 492 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 2015 |
| Architectural Style | Other |
| Exterior Material | Wood |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 6,926 sqft (0.158 acres) |
| Garage Type | Mixed |
| Garage Area | 254 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 150 sqft |
| Deck Area | 180 sqft |
| Heating System | Forced Air |
|---|
| Account Number | R0001177 |
|---|---|
| Old Parcel Number | 0001177 |
| Street Address | 2021 WALNUT ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-4481 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 1115 |
| Legal Description | LOT 10 BLK 75 BOULDER O T EAST |
| Legal Range | 70 |
| Legal Township | 01N |
| Legal Section | 30 |
| Legal Subdivision | BOULDER O T EAST & WEST & NORTH |
| Legal Block | 75 |
| Legal Lot Number | 10 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 12202 |
Source: Boulder County records, as of March 22, 2017
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 2021 WALNUT ST# 1, 1, BOULDER, CO 80302-4481 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 28, 2017 · Amount on Record |
| Deed Sale | Jul 28, 2017 · Amount on Record |
| Prior Sale | Jul 13, 2016 · Amount on Record |
| Deed Document Number | 3606061 |
| Record Updated | Jun 7, 2026 |
Source: Boulder County assessment roll, as of August 25, 2016
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 8 (2013) |
| Claims Outside the SFHA | 4 of 8 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 99.2% of Colorado |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF BOULDER serves 166,080 people · EPA ID CO0107152 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2024 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | Haloacetic acids resolved · Jul 2017 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 432 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| CenturyLink Fiber · DSL in parts of the area | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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