Boulder County property record for 1131 11th St, Boulder, CO 80302
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 6 bd · 4 ba · 3,648 sqft · built 1920 |
| Lot Size | 0.141 acres (6,133 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $575,000 (Oct 2001) |
| Tax Bill | $15,259 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-31-2-41-013 |
| Primary APN | 1463-31-2-41-013 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 15 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 3,648 sqft Living Area |
| 1st Floor Area | 1,216 sqft |
| Upper Floors Area | 1,216 sqft |
| Basement Area | 1,216 sqft |
| Finished Basement | 1,216 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1975 |
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 6,133 sqft (0.141 acres) |
| Garage Type | Detached |
| Garage Area | 540 sqft |
| Porch | Porch |
| Porch Area | 200 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0003694 |
|---|---|
| Street Address | 1131 11TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-6931 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | LOTS 26-27 BLK 3 UNIVERSITY TERRACE |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 31 |
| Legal Subdivision | UNIVERSITY TERRACE - BO |
| Legal Block | 3 |
| Legal Lot Number | 26 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 12401 |
Source: Boulder County records, as of June 15, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 542 MARINE ST, BOULDER, CO 80302-5833 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 4, 2001 · Amount on Record |
| Deed Sale | Oct 4, 2001 · Amount on Record |
| Deed Document Number | 20012204632 |
| Prior Transfer Date | Jan 1, 1997 |
| Prior Transfer Doc | 0001669243 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County assessment roll, as of June 15, 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 | $171,360 (+8.8%) Land $70,693 Building $100,667 | $2,520,000 (-) Land $1,039,600 Building $1,480,400 | |
| 2025 | $15,259.00 (+4.69%) | $157,500 (-7.28%) Land $64,975 Building $92,525 | $2,520,000 (-0.6%) Land $1,039,600 Building $1,480,400 |
| 2023 | $14,575.00 (+43.17%) | $169,859 (+58.44%) Land $66,632 Building $103,227 | $2,535,200 (+60.8%) Land $994,500 Building $1,540,700 |
| 2022 | $10,180.00 | $107,209 Land $54,801 Building $52,408 | $1,576,600 Land $805,900 Building $770,700 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 2 in force |
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 367 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 |
May also be available: AT&T, Magnolia Road Internet Cooperative.
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