Boulder County property record for 450 College Ave, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.25 ba · 4,040 sqft · built 1967 |
| Lot Size | 0.664 acres (28,922 sqft) |
| Owner | Company Name on File |
| Last Sale | $1,500,000 (Jun 2008) |
| Tax Bill | $21,821 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-36-1-42-003 |
| Primary APN | 1461-36-1-42-003 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 4,040 sqft Living Area |
| Gross Area | 4,154 sqft |
| 1st Floor Area | 2,745 sqft |
| Basement Area | 1,409 sqft |
| Finished Basement | 1,295 sqft |
| Unfinished Basement | 114 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1967 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | Ranch |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 28,922 sqft (0.664 acres) |
| Deck Area | 83 sqft |
| Patio Area | 791 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0000746 |
|---|---|
| Street Address | 450 COLLEGE AVE |
| City | BOULDER |
| State | CO |
| Zip | 80302-7132 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 3 KECOUGHTAN HILLS |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 36 |
| Legal Subdivision | KECOUGHTAN HILLS - BO |
| Legal Block | 3 |
| Legal Lot Number | 3 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3013 |
| Census Tract | 12201 |
450 College Ave is owned by a company that bought it in June 2008.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 450 COLLEGE AVE, BOULDER, CO 80302-7132 |
| Owner Type | Company |
| Vesting | Borrower in Default |
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 | Name on Deed |
|---|---|
| Last Sale | Jun 11, 2008 · Amount on File |
| Deed Sale | Jun 11, 2008 · Amount on File |
| Prior Sale | May 8, 1992 · Amount on File |
| Deed Document Number | 20082935438 |
| Prior Transfer Date | Nov 11, 2002 |
| Prior Transfer Doc | 0002370158 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 450 College Ave was $21,821.
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 | $243,311 (+6.71%) Land $218,504 Building $24,807 | $3,648,100 (-) Land $3,283,290 Building $364,810 | |
| 2025 | $21,821.00 | $228,007 Land $205,206 Building $22,801 | $3,648,100 Land $3,283,290 Building $364,810 |
| 2023 | $20,700.00 (-12.9%) | $242,520 (-5.24%) Land $218,268 Building $24,252 | $3,619,700 (-1.71%) Land $3,257,730 Building $361,970 |
| 2022 | $23,767.00 | $255,934 Land $180,478 Building $75,456 | $3,682,500 Land $2,596,800 Building $1,085,700 |
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 450 College Ave in Zone X, an area of minimal flood risk, though there have been 29 flood claims nearby since 1983.
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 |
| Flood Insurance Cost | Premium on File median of 34 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 34 in force |
| Nearby Flood Claims | 29 (1983–2025) |
| Claims Outside the SFHA | 10 of 29 |
| Most Recent Claim | Apr 2025 · other causes |
| 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 450 College Ave is high, ranking above 78% of the US, with a 0.4% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 78% of the US · above 79% of Colorado |
|---|---|
| Wildfire Likelihood | 0.4% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 550 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 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Magnolia Road Internet Cooperative, Verizon.
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