Boulder County property record for 231 Horsfall St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 1 bd · 1 ba · 672 sqft · built 1925 |
| Lot Size | 0.121 acres (5,268 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $30,500 (Sep 1976) |
| Tax Bill | $752 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1459-12-0-02-005 |
| Primary APN | 1459-12-0-02-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 672 sqft Living Area |
| 1st Floor Area | 672 sqft |
| Interior Walls | Plywood |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1925 |
| Architectural Style | Ranch |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 5,268 sqft (0.121 acres) |
| Garage Type | Detached |
| Garage Area | 478 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
|---|---|
| Porch Area | 88 sqft |
| Deck Area | 322 sqft |
| Shed | 1 Shed |
| Total Buildings | 2 Buildings |
| Heating System | Floor/Wall Furnace |
|---|
| Account Number | R0024418 |
|---|---|
| Street Address | 231 HORSFAL ST |
| State | CO |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | H |
| Legal Description | LOT 10 BLK 3 GOLD HILL |
| Legal Range | 72 |
| Legal Township | 1N |
| Legal Section | 12 |
| Legal Subdivision | GOLD HILL - MT |
| Legal Block | 3 |
| Legal Lot Number | 10 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BALD MOUNTAIN |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 13704 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Gold Hill Historic District listed 1989 · 38 contributing resources · NRIS 89000979 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Source: Boulder County records, as of June 15, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 231 HORSFALL ST, BOULDER, CO 80302-8708 |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 2, 1976 · Amount on Record |
| Deed Sale | Sep 2, 1976 · Amount on Record |
| Deed Document Number | 1976190638 |
| Last Transfer Date | Mar 31, 2020 |
| Transfer Doc | 0003775198 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County assessment roll, as of June 15, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $15,435 (+8.8%) Land $1,136 Building $14,299 | $226,981 (-) Land $16,700 Building $210,281 | |
| 2025 | $752.00 (+136.48%) | $14,187 (+29.36%) Land $1,044 Building $13,143 | $226,981 (+38.66%) Land $16,700 Building $210,281 |
| 2024 | $318.00 (+1.92%) | ||
| 2023 | $312.00 (-15.22%) | $10,967 (+38.79%) Land $884 Building $10,083 | $163,701 (+43.98%) Land $13,200 Building $150,501 |
| 2022 | $368.00 | $7,902 Land $535 Building $7,367 | $113,700 Land $7,700 Building $106,000 |
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.
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 2 (2013) |
| 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 | Extreme above 95% of the US · above 98.2% of Colorado |
|---|---|
| Wildfire Likelihood | 1% annual chance |
| Exposure | Direct burnable vegetation |
Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 34 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| Visionary Broadband Fixed Wireless | 200 / 20 |
| CenturyLink DSL | 100 / 10 |
May also be available: Xfinity.
4G LTE (outdoors only), no 5G reported
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