Boulder County property record for 300 Arapahoe Ave, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.75 ba · 3,762 sqft · built 1935 |
| Lot Size | 2.93 acres (127,736 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $550,000 (Aug 1998) |
| Tax Bill | $26,914 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-36-2-00-020 |
| Primary APN | 1461-36-2-00-020 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 3,762 sqft Living Area |
| Gross Area | 4,349 sqft |
| 1st Floor Area | 1,935 sqft |
| Upper Floors Area | 237 sqft |
| Basement Area | 1,590 sqft |
| Finished Basement | 1,590 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1935 |
|---|---|
| Effective Year Built | Effective 1997 |
| Exterior Material | Combination |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 127,736 sqft |
| Garage Type | Attached |
| Garage Area | 587 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 1,144 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Hot Water |
| Account Number | R0033213 |
|---|---|
| Street Address | 300 ARAPAHOE AVE |
| City | BOULDER |
| State | CO |
| Zip | 80302-5823 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | T |
| Legal Description | TR 416-J-1 36-1N-71 PER DEED 458840 8/11/81 CIVIL ACTION NO 75-0846-2 SPLIT TO ID 114444/DEED 1/93 CONSERVATION EASEMENT REC 1252851 12/30/92 |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 36 |
| Legal Subdivision | TR, NBR 158, 160, 162 |
| Legal Tract | 416-J-1 |
| Legal Block | 3 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 12201 |
Source: Boulder County records, as of September 18, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 300 ARAPAHOE AVE, BOULDER, CO 80302-5823 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 13, 1998 · Amount on Record |
| Deed Sale | Aug 13, 1998 · Amount on Record |
| Prior Sale | Dec 30, 1992 · Amount on Record |
| Deed Document Number | 19981834871 |
| Record Updated | Oct 29, 2026 |
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 | $276,998 (+6.96%) Land $248,822 Building $28,176 | $4,143,500 (-) Land $3,729,150 Building $414,350 | |
| 2025 | $26,914.00 (+3.85%) | $258,969 (-6.23%) Land $233,072 Building $25,897 | $4,143,500 (+0.52%) Land $3,729,150 Building $414,350 |
| 2023 | $25,916.00 (+13.03%) | $276,168 (+22.62%) Land $248,551 Building $27,617 | $4,121,900 (+27.2%) Land $3,709,710 Building $412,190 |
| 2022 | $22,929.00 | $225,214 Land $202,693 Building $22,521 | $3,240,500 Land $2,916,450 Building $324,050 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Very High above 90% of the US · above 94% 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: 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 331 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| Xfinity Cable | 2,000 / 250 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: CenturyLink, Verizon.
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