Boulder County property record for 1515 23rd St, Boulder, CO 80302
| Property Type | Warehouse, Storage |
|---|---|
| Details | 1 bd · 1.5 ba · 2,266 sqft · built 1923 |
| Lot Size | 0.128 acres (5,590 sqft) |
| Owner | Company Name on Record |
| Last Sale | $340,000 (Jan 2009) |
| Tax Bill | $20,471 (2025) |
| Flood Zone | Zone AO (high risk) |
| APN | 1463-30-8-48-002 |
| Primary APN | 1463-30-8-48-002 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 1 Room |
| Stories | 1 Story |
| Building Area | 2,266 sqft Gross Area |
| 1st Floor Area | 2,133 sqft |
| Interior Walls | Unfinished |
| Year Built | Built 1923 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Ranch |
| Exterior Material | Block |
| Construction Type | Frame |
| Roof Material | Tar & Gravel |
| Lot Area | 5,590 sqft (0.128 acres) |
| Garage Type | Attached |
| Garage Area | 133 sqft |
| Patio Area | 82 sqft |
| Heating System | Hot Water |
|---|
| Account Number | R0007913 |
|---|---|
| Street Address | 1515 23RD ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-6654 |
| Property Category | Industrial |
| Property Type | Industrial > Warehouse, Storage |
| Legal Description | S1/2 LOTS 1 & 2 BLK 19 CULVERS |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 30 |
| Legal Subdivision | CULVER - BO |
| Legal Block | 19 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 12206 |
Source: Boulder County records, as of September 18, 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 Record |
|---|---|
| Mailing Address | PO BOX 106, BOULDER, CO 80306-0106 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jan 21, 2009 · Amount on Record |
| Deed Sale | Jan 21, 2009 · Amount on Record |
| Prior Sale | Mar 10, 1992 · Amount on Record |
| Deed Document Number | 20092974410 |
| Prior Transfer Date | Jan 15, 2007 |
| Prior Transfer Doc | 0002830035 |
| Record Updated | Oct 29, 2026 |
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 | $212,500 (-7.41%) Land $206,250 Building $6,250 | $850,000 (-) Land $825,000 Building $25,000 | |
| 2025 | $20,471.00 (-1.78%) | $229,500 (-3.23%) Land $222,750 Building $6,750 | $850,000 (-) Land $825,000 Building $25,000 |
| 2024 | $20,841.00 (+1.76%) | ||
| 2023 | $20,480.00 (+120.43%) | $237,150 (+137.03%) Land $230,175 Building $6,975 | $850,000 (+146.38%) Land $825,000 Building $25,000 |
| 2022 | $9,291.00 | $100,050 Land $92,510 Building $7,540 | $345,000 Land $319,000 Building $26,000 |
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 AO high risk · sheet flow 1–3 ft |
|---|---|
| 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 101 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 174 units insured incl. 73 condo units |
| Nearby Flood Claims | 10 (2013) |
| Most Recent Claim | Oct 2013 · rainfall accumulation |
| 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 | Not rated no burnable land within ember reach |
|---|
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 432 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 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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