Boulder County property record for 1650 Alpine Ave, Boulder, CO 80304
| Property Type | Exempt (Full or Partial) |
|---|---|
| Details | 3 bd · 2 ba · 1,080 sqft · built 1959 |
| Lot Size | 0.336 acres (14,627 sqft) |
| Owner | Company Name on File |
| Last Sale | $228,000 (Apr 1997) |
| Flood Zone | Zone AE (high risk) |
| APN | 1463-30-2-25-021 |
| Primary APN | 1463-30-2-25-021 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Building Area | 1,080 sqft |
| 1st Floor Area | 1,080 sqft |
| Basement Area | 576 sqft |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1959 |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 14,627 sqft (0.336 acres) |
| Garage Area | 308 sqft |
| Account Number | R0003915 |
|---|---|
| Street Address | 1650 ALPINE AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-3509 |
| Property Category | Other |
| Property Type | Other > Exempt (Full or Partial) |
| Legal Description | E 132.15 FT OF LOT 42 BLK 2 SUNSET HILL |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 30 |
| Legal Subdivision | SUNSET HILL - BO |
| Legal Block | 2 |
| Legal Lot Number | 42 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 12106 |
Source: Boulder County records · APN 1463-30-2-25-021
Assessment roll updated June 15, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 791, BOULDER, CO 80306-0791 |
| Owner Type | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Apr 25, 1997 · Amount on Record |
| Deed Sale | Apr 25, 1997 · Amount on Record |
| Prior Sale | Feb 01, 1993 |
| Deed Document Number | 19971693351 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $454,844 (-3.7%) Land $454,844 | $1,749,400 (-) Land $1,749,400 | |
| 2025 | Additional exemption filed | $472,338 (+96.26%) Land $472,338 | $1,749,400 (+102.8%) Land $1,749,400 |
| 2023 | Additional exemption filed | $240,670 Land $240,670 | $862,615 Land $862,615 |
Source: FEMA National Flood Hazard Layer as of October 14, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 27 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 102 units insured incl. 75 condo units |
| Nearby Flood Claims | 4 (2013–2023) |
| Most Recent Claim | Mar 2023 · other causes |
| Claims by Event |
|
| Wildfire Risk | Low lower than 80% of the US · lower than 91% of Colorado |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Fixed Wireless | 2,500 / 2,500 |
| Lumen Technologies Fiber | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Live Wire Networks Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: AT&T.
Based on FCC filings for 544 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF BOULDER serves 166,080 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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