Boulder County property record for 1860 Walnut St, Apt 12, Boulder, CO 80302
| Property Type | Condominium |
|---|---|
| Details | 2 bd · 1.5 ba · 1,096 sqft · built 1984 |
| Lot Size | 0.422 acres (18,379 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $505,000 (Oct 2016) |
| Tax Bill | $4,038 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 1463-30-4-37-012 |
| Primary APN | 1463-30-4-37-012 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 4 Rooms |
| Units | 15 Units |
| Building Area | 1,096 sqft Living Area |
| 1st Floor Area | 520 sqft |
| Upper Floors Area | 576 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1984 |
| Architectural Style | Condo/Apartment |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 18,379 sqft (0.422 acres) |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0099472 |
|---|---|
| Street Address | 1860 WALNUT ST, 12 |
| City | BOULDER |
| State | CO |
| Zip | 80302-5556 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Legal Description | UNIT 12 & UND 8.70% INT GCE WIDNER CENTER CONDOS |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 30 |
| Legal Subdivision | WIDNER CENTER CONDOS - BO |
| Legal Block | 2 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 12205 |
1860 Walnut St, Apt 12 is owned by two individuals who bought it in October 2016.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 300 LANS DOWNE AV # 42, WESTMOUNT, QC H3Z 2 |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 18, 2016 · Amount on File |
| Deed Sale | Oct 18, 2016 · Amount on File |
| Prior Sale | Mar 6, 2002 · Amount on File |
| Deed Document Number | 20163551114 |
| Prior Transfer Date | May 28, 2013 |
| Prior Transfer Doc | 0003316813 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 1860 Walnut St, Apt 12 was $4,038.
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $40,643 (-2.08%) Building $40,643 | $664,100 (-) Building $664,100 | |
| 2025 | $4,038.00 | $41,506 Building $41,506 | $664,100 Building $664,100 |
| 2023 | $3,510.00 (-0.48%) | $43,464 (+16.89%) Building $43,464 | $648,718 (+21.26%) Building $648,718 |
| 2022 | $3,527.00 | $37,183 Building $37,183 | $535,000 Building $535,000 |
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.
FEMA maps place 1860 Walnut St, Apt 12 in Zone X, an area of moderate flood risk, within 500 ft of a high-risk flood zone.
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 |
| Flood Insurance Cost | Premium on File median of 31 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 64 units insured incl. 33 condo units |
| Nearby Flood Claims | 6 (2013) |
| Claims Outside the SFHA | 2 of 6 |
| 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.
Wildfire risk around 1860 Walnut St, Apt 12 is low, with less than a 0.01% annual chance of wildfire.
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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