Boulder County property record for 1521 11th St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,208 sqft · built 1905 |
| Lot Size | 0.061 acres (2,670 sqft) |
| Owner | Company Name on Record |
| Last Sale | $730,000 (Dec 2009) |
| Tax Bill | $10,606 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-31-2-24-003 |
| Primary APN | 1463-31-2-24-003 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,208 sqft Living Area |
| 1st Floor Area | 736 sqft |
| Upper Floors Area | 736 sqft |
| Basement Area | 736 sqft |
| Finished Basement | 736 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1905 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | A-Frame |
| Exterior Material | Combination |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 2,670 sqft (0.061 acres) |
| Garage Type | Detached |
| Garage Area | 160 sqft |
| Porch | Porch |
| Porch Area | 192 sqft |
| Total Buildings | 2 Buildings |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0007345 |
|---|---|
| Street Address | 1521 11TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-6107 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | N 55 FT LOT 6 BLK 1 GRAND VIEW HEIGHTS |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 31 |
| Legal Subdivision | GRAND VIEW HEIGHTS - BO |
| Legal Block | 1 |
| Legal Lot Number | 6 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 12204 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 5923 S ELM CT, CENTENNIAL, CO 80121-3326 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 28, 2009 · Amount on Record |
| Deed Sale | Dec 28, 2009 · Amount on Record |
| Prior Sale | Nov 17, 2006 · Amount on Record |
| Deed Document Number | 20093049957 |
| Last Transfer Date | Feb 8, 2013 |
| Transfer Doc | 0003289740 |
| 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 | $115,348 (+4.49%) Land $41,881 Building $73,467 | $1,766,300 (-) Land $685,900 Building $1,080,400 | |
| 2025 | $10,606.00 (+5.53%) | $110,394 (-7.38%) Land $42,869 Building $67,525 | $1,766,300 (-0.71%) Land $685,900 Building $1,080,400 |
| 2023 | $10,050.00 (+15.21%) | $119,193 (+27.99%) Land $43,965 Building $75,228 | $1,779,000 (+32.76%) Land $656,200 Building $1,122,800 |
| 2022 | $8,723.00 | $93,130 Land $36,953 Building $56,177 | $1,340,000 Land $531,700 Building $808,300 |
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 14 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 16 units insured incl. 2 condo units |
| Nearby Flood Claims | 17 (1980–2016) |
| Claims Outside the SFHA | 10 of 17 |
| Most Recent Claim | Jun 2016 · 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 | Low lower than 80% of the US · lower than 91% of Colorado |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 426 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless · Fiber in parts of the area | 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 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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