Sonoma County property record for 856 Oak St, Sonoma, CA 95476
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 2.5 ba · 1,661 sqft · built 1901 |
| Lot Size | 0.227 acres (9,900 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $460,000 (Sep 2015) |
| Tax Bill | $8,804 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 052-395-007-000 |
| Primary APN | 052-395-007-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,661 sqft Living Area |
| 1st Floor Area | 1,661 sqft |
| Year Built | Built 1901 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 9,900 sqft (0.227 acres) |
| Garage Type | Detached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | None |
|---|
| Old Parcel Number | 052-395-007 |
|---|---|
| Street Address | 856 OAK ST |
| City | SONOMA |
| State | CA |
| Zip | 95476-6110 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R15UA |
| Legal Subdivision | AMENDED MAP OF THE TOWN OF EL VERANO |
| Legal Block | 4 |
| Legal Lot Number | 9,10 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 4 |
| Census Block | 4023 |
| Census Tract | 150304 |
Source: Sonoma County records, as of September 1, 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 | 856 OAK ST, SONOMA, CA 95476-6110 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 10, 2015 · Amount on Record |
| Deed Sale | Sep 10, 2015 · Amount on Record |
| Deed Document Number | 201580091 |
| Prior Transfer Date | Apr 28, 2006 |
| Prior Transfer Doc | 0000061088 |
| Record Updated | Oct 29, 2026 |
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Unified School District | Sonoma Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $543,356 (+2%) Land $271,678 Building $271,678 | |
| 2025 | $8,804.00 (+7.52%) | $532,702 (+4.04%) Land $266,351 Building $266,351 |
| 2023 | $8,188.00 (+3.53%) | $512,018 Land $256,009 Building $256,009 |
| 2022 | $7,909.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective February 15, 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 10 (0% premium discount) |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 5 (1986–2019) |
| Claims Outside the SFHA | 5 of 5 |
| Most Recent Claim | Jan 2019 · river or lake flooding |
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 88% of California |
|---|---|
| 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 | VALLEY OF THE MOON WATER DISTRICT serves 23,140 people · EPA ID CA4910013 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Sep 2022 |
| Lead | Under 1 ppb (2024–2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 390 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: T-Mobile.
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