Boulder County property record for 451 College St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,675 sqft · built 1889 |
| Lot Size | 0.256 acres (11,134 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $34,000 (May 1980) |
| Tax Bill | $2,805 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1459-11-0-03-008 |
| Primary APN | 1459-11-0-03-008 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,675 sqft Living Area |
| Gross Area | 2,719 sqft |
| 1st Floor Area | 1,630 sqft |
| Upper Floors Area | 1,045 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1889 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 11,134 sqft (0.256 acres) |
| Porch | Enclosed Porch |
|---|---|
| Porch Area | 296 sqft |
| Deck Area | 56 sqft |
| Patio Area | 224 sqft |
| Shed | 1 Shed |
| Total Buildings | 3 Buildings |
| Heating System | Floor/Wall Furnace |
|---|
| Account Number | R0023490 |
|---|---|
| Street Address | 451 COLLEGE ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-8713 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 18 BLK 14 GOLD HILL 2 IMPS |
| Legal Range | 72 |
| Legal Township | 1N |
| Legal Section | 12 |
| Legal Subdivision | GOLD HILL - MT |
| Legal Block | 14 |
| Legal Lot Number | 18 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BALD MOUNTAIN |
| Census Block Group | 2 |
| Census Block | 2028 |
| Census Tract | 13703 |
451 College St is held in a trust since November 1997.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 3014 JEFFERSON ST, BOULDER, CO 80304-2638 |
| Owner Type | Company |
| Vesting | Trust, Living Trust |
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 | May 2, 1980 · Amount on File |
| Deed Sale | May 2, 1980 · Amount on File |
| Deed Document Number | 1980394099 |
| Last Transfer Date | Nov 26, 1997 |
| Transfer Doc | 0001753187 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 451 College St was $2,805, up 16.7% from the year before.
Source: Boulder County assessment roll, as of September 18, 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 | $28,975 (-2.08%) Building $28,975 | $473,450 (-) Land $28,600 Building $444,850 | |
| 2025 | $2,805.00 (+16.73%) | $29,590 Land $1,788 Building $27,802 | $473,450 Land $28,600 Building $444,850 |
| 2024 | $2,403.00 (+1.78%) | ||
| 2023 | $2,361.00 (-3.79%) | $31,206 (+17.37%) Land $2,084 Building $29,122 | $465,764 (+21.75%) Land $31,100 Building $434,664 |
| 2022 | $2,454.00 | $26,588 Land $1,411 Building $25,177 | $382,560 Land $20,300 Building $362,260 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 451 College St in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 2013.
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 | 7 in force |
| Nearby Flood Claims | 3 (2013) |
| Claims Outside the SFHA | 3 of 3 |
| 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 451 College St is extreme, ranking above 96% of the US, with a 1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Extreme above 96% of the US · above 98.5% of Colorado |
|---|---|
| Wildfire Likelihood | 1% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 59 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Starlink Satellite | 280 / 30 |
| CenturyLink DSL · Fiber in parts of the area | 100 / 10 |
May also be available: AT&T, Ayva Networks, Intrepid Fiber Networks, Nedernet, Visionary Broadband, Xfinity.
4G LTE (outdoors only), no 5G reported
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