Boulder County property record for 3131 10th St, Boulder, CO 80304
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 2.75 ba · 2,522 sqft · built 1949 |
| Lot Size | 0.143 acres (6,214 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $1,950,000 (Apr 2018) |
| Tax Bill | $15,587 (2025) |
| Deeds & Mortgages | Feb 2023 Transfer Apr 2018 Sale & Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-24-4-10-015 |
| Primary APN | 1461-24-4-10-015 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,522 sqft Living Area |
| 1st Floor Area | 1,373 sqft |
| Upper Floors Area | 634 sqft |
| Basement Area | 515 sqft |
| Finished Basement | 515 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 6,214 sqft (0.143 acres) |
| Garage Type | Detached |
| Garage Area | 240 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Porch Area | 156 sqft |
| Deck Area | 30 sqft |
| Cooling System | Evaporative |
|---|---|
| Heating System | Hot Water |
| Account Number | R0002843 |
|---|---|
| Street Address | 3131 10TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80304-2523 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS 31-32 BLK 11 NEWLANDS |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 24 |
| Legal Subdivision | NEWLANDS - BO |
| Legal Block | 11 |
| Legal Lot Number | 31 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2021 |
| Census Tract | 12101 |
Source: Boulder County records, as of September 18, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 3131 10TH ST, BOULDER, CO 80304-2523 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Feb 27, 2023 | Intrafamily Transfer, Transfer |
| Apr 24, 2018 | Warranty Deed, Transfer BARRETT TOAN |
| Sep 18, 2017 | Deed of Trust, Mortgage · Line of Credit KEYBANK USA |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 24, 2018 · Amount on Record |
| Deed Sale | Apr 24, 2018 · Amount on Record |
| Prior Sale | Jul 9, 2013 · Amount on Record |
| Deed Document Number | 20183651900 |
| Prior Transfer Date | Apr 17, 2000 |
| Prior Transfer Doc | 0002038580 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Feb 27, 2023 |
| Property Address | 3131 10TH ST, BOULDER, CO 80304-2523 |
| Document Number | 0003998429 |
| Instrument Date | Feb 23, 2023 |
| Instrument | 3998429 |
| Transaction Type | Transfer |
| Record Updated | Mar 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 3131 10TH ST, BOULDER, CO 80304-2523 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Apr 24, 2018 |
| Property Address | 3131 10TH ST, BOULDER, CO 80304-2523 |
| Document Number | 0003651900 |
| Instrument Date | Apr 12, 2018 |
| Instrument | 3651900 |
| Transaction Type | Transfer |
| Record Updated | May 2, 2018 |
| Title Company | FIDELITY NATIONAL TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $195.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 3131 10TH ST BOULDER CO 803042523, BOULDER, CO 80304-2523 |
| Document Number | 3651901 |
|---|---|
| Date | Apr 24, 2018 |
| Instrument | 3651901 |
| Name | BARRETT TOAN |
|---|---|
| Address | 463 CAMINO MANZANO, SANTA FE, NM 87505-2833 |
| Amount | Amount Recorded |
|---|---|
| Term | 300 Months |
| Due | Apr 23, 2043 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3131 10TH ST, BOULDER, CO 80304-2523 |
| Document Number | 0003619747 |
| Instrument Date | Sep 18, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Oct 18, 2017 |
| Title Company | ACCURATE TITLE GROUP, ACCURATE TITLE GRP |
| Name | Verified Name |
|---|---|
| Address | 3131 10TH ST BOULDER CO 803042523, BOULDER, CO 80304-2523 |
| Document Number | 0003619747 |
|---|---|
| Date | Oct 13, 2017 |
| Instrument | 3619747 |
| Name | KEYBANK USA |
|---|---|
| Type | Bank |
| Address | BROOKLYN, OH 44144 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Oct 12, 2047 |
| Rate Type | Adjustable Rate |
|---|
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 | $173,101 (+5.89%) Land $88,251 Building $84,850 | $2,615,600 (-) Land $1,367,800 Building $1,247,800 | |
| 2025 | $15,587.00 (-1.36%) | $163,476 (-12.43%) Land $85,488 Building $77,988 | $2,615,600 (-6.12%) Land $1,367,800 Building $1,247,800 |
| 2023 | $15,802.00 (+11.84%) | $186,676 (+22.69%) Land $94,745 Building $91,931 | $2,786,200 (+27.26%) Land $1,414,100 Building $1,372,100 |
| 2022 | $14,129.00 | $152,157 Land $68,041 Building $84,116 | $2,189,300 Land $979,000 Building $1,210,300 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 63 policies |
| 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 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 64% of the US · lower than 81% of Colorado |
|---|---|
| Wildfire Likelihood | 0.05% 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 596 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 | 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 |
| AT&T Fixed Wireless | 100 / 20 |
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