Boulder County property record for 850 6th St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.25 ba · 3,997 sqft · built 1966 |
| Lot Size | 0.309 acres (13,452 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,110,000 (Jun 2006) |
| Tax Bill | $18,946 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-36-4-26-005 |
| Primary APN | 1461-36-4-26-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Half Baths | 3 Half Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 3,997 sqft Living Area |
| Gross Area | 4,737 sqft |
| 1st Floor Area | 2,166 sqft |
| Upper Floors Area | 811 sqft |
| Basement Area | 1,188 sqft |
| Finished Basement | 1,020 sqft |
| Unfinished Basement | 168 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1966 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | A-Frame |
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Concrete |
| Lot Area | 13,452 sqft (0.309 acres) |
| Garage Type | Attached |
| Garage Area | 572 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 572 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0007989 |
|---|---|
| Street Address | 850 6TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-7419 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 12-13 & S 1/2 LOT 14 BLK 2 BO REAS & N 10 FT LOT 24 BLK 8 CHAUTAUQUA HEIGHTS |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 36 |
| Legal Subdivision | REAS - BO |
| Legal Block | 2,8 |
| Legal Lot Number | 12 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3029 |
| Census Tract | 12201 |
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 | 850 6TH ST, BOULDER, CO 80302-7419 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 2, 2006 · Amount on Record |
| Deed Sale | Jun 2, 2006 · Amount on Record |
| Deed Document Number | 20062780946 |
| 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 | $216,192 (+8.8%) Land $140,345 Building $75,847 | $3,179,300 (-) Land $2,063,900 Building $1,115,400 | |
| 2025 | $18,946.00 (+3.61%) | $198,707 (-6.16%) Land $128,994 Building $69,713 | $3,179,300 (+0.59%) Land $2,063,900 Building $1,115,400 |
| 2024 | $18,286.00 (+1.76%) | ||
| 2023 | $17,969.00 (+11.97%) | $211,760 (+23.76%) Land $133,082 Building $78,678 | $3,160,600 (+28.38%) Land $1,986,300 Building $1,174,300 |
| 2022 | $16,048.00 | $171,102 Land $112,277 Building $58,825 | $2,461,900 Land $1,615,500 Building $846,400 |
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 34 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 34 in force |
| Nearby Flood Claims | 29 (1983–2025) |
| Claims Outside the SFHA | 10 of 29 |
| Most Recent Claim | Apr 2025 · 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 | High above 74% of the US · above 72% of Colorado |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 550 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 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Magnolia Road Internet Cooperative, Verizon.
5G (outdoors only) and 4G LTE
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