Boulder County property record for 921 11th St, Boulder, CO 80302
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 4 bd · 2 ba · 1,460 sqft · built 1900 |
| Lot Size | 0.15 acres (6,526 sqft) |
| Owner | Company Name on File |
| Last Sale | $532,200 (May 2006) |
| Tax Bill | $7,641 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-31-3-13-015 |
| Primary APN | 1463-31-3-13-015 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 1,460 sqft Living Area |
| Gross Area | 1,652 sqft |
| 1st Floor Area | 990 sqft |
| Upper Floors Area | 470 sqft |
| Basement Area | 192 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Multi-Level |
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 6,526 sqft (0.15 acres) |
| Porch | Porch |
| Porch Area | 366 sqft |
| Heating System | Hot Water |
|---|
| Account Number | R0004080 |
|---|---|
| Street Address | 921 11TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-7204 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | LOTS 27-28 BLK 11 UNIVERSITY PLACE |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 31 |
| Legal Subdivision | UNIVERSITY PLACE - BO |
| Legal Block | 11 |
| Legal Lot Number | 27 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 4 |
| Census Block | 4009 |
| Census Tract | 12401 |
Source: Boulder County records · APN 1463-31-3-13-015
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 | 1310 IRIS AVE, BOULDER, CO 80304-2227 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | May 31, 2006 · Amount on Record |
| Deed Sale | May 31, 2006 · Amount on Record |
| Prior Sale | May 10, 1985 |
| Deed Document Number | 20062779872 |
| Prior Transfer Date | Oct 18, 1999 |
| Prior Transfer Doc | 0001992449 |
| 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, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $84,095 (+8.8%) Land $61,254 Building $22,841 | $1,236,700 (-) Land $900,800 Building $335,900 | |
| 2025 | $7,641.00 (+8.97%) | $77,294 (-7.05%) Land $56,300 Building $20,994 | $1,236,700 (-0.35%) Land $900,800 Building $335,900 |
| 2023 | $7,012.00 (+12.44%) | $83,153 (+26.86%) Land $57,365 Building $25,788 | $1,241,100 (+28.76%) Land $856,200 Building $384,900 |
| 2022 | $6,236.00 | $65,545 Land $45,988 Building $19,557 | $963,900 Land $676,300 Building $287,600 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), as of October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130124014, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Moderate above 51% of the US · lower than 65% of Colorado |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within 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: Magnolia Road Internet Cooperative.
Based on FCC filings for 480 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System, water system CO0107152, 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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