Boulder County property record for 3131 9th St, Boulder, CO 80304 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.25 ba · 3,355 sqft · built 1946 |
| Lot Size | 0.139 acres (6,034 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,235,000 (Jun 2011) |
| Tax Bill | $13,360 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-24-4-13-014 |
| Primary APN | 1461-24-4-13-014 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Half Baths | 3 Half Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 3,355 sqft Living Area |
| Gross Area | 3,913 sqft |
| 1st Floor Area | 1,303 sqft |
| Upper Floors Area | 1,080 sqft |
| Basement Area | 1,080 sqft |
| Finished Basement | 972 sqft |
| Unfinished Basement | 108 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1946 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 6,034 sqft (0.139 acres) |
| Garage Type | Attached |
| Garage Area | 450 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 150 sqft |
| Patio Area | 169 sqft |
| Cooling System | Evaporative |
|---|---|
| Heating System | Hot Water |
| Account Number | R0004294 |
|---|---|
| Street Address | 3131 9TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80304-2519 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS 32-33 BLK 19 NEWLANDS |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 24 |
| Legal Subdivision | NEWLANDS - BO |
| Legal Block | 19 |
| Legal Lot Number | 32 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2022 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-24-4-13-014
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 3131 9TH ST, BOULDER, CO 80304-2519 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jun 30, 2011 · Amount on Record |
| Deed Sale | Jun 30, 2011 · Amount on Record |
| Prior Sale | Jan 06, 2003 · Amount on Record |
| Deed Document Number | 20113156582 |
| 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 | $152,456 (+8.8%) Land $91,657 Building $60,799 | $2,242,000 (-) Land $1,347,900 Building $894,100 | |
| 2025 | $13,360.00 (-1.15%) | $140,125 (-12.53%) Land $84,244 Building $55,881 | $2,242,000 (-6.24%) Land $1,347,900 Building $894,100 |
| 2023 | $13,516.00 (+26.14%) | $160,204 (+38.84%) Land $93,365 Building $66,839 | $2,391,100 (+44.02%) Land $1,393,500 Building $997,600 |
| 2022 | $10,715.00 | $115,391 Land $67,047 Building $48,344 | $1,660,300 Land $964,700 Building $695,600 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130121012, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Flood Insurance Cost | Premium on Record median of 63 individual NFIP policies nearby |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 63 in force |
| Nearby Flood Claims | 25 (1990–2026) |
| Claims Outside the SFHA | 17 of 25 |
| Most Recent Claim | Jun 2026, rainfall accumulation |
| Claims By Storm |
|
| Wildfire Risk | Moderate above 55% of the US · above 39% of Colorado |
|---|---|
| Wildfire Likelihood | About 1 in 694 per year |
| 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, availability as of December 31, 2025 · Published October 2026 · based on 596 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Ayva | Fixed Wireless (unlicensed) | 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 (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | Fixed Wireless | 100 / 20 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
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