Sonoma County property record for 811 Walnut Ave, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 4 ba · 1,542 sqft · built 2003 |
| Lot Size | 0.172 acres (7,500 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $520,000 (Mar 2004) |
| Tax Bill | $10,615 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 052-395-020-000 |
| Primary APN | 052-395-020-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,542 sqft Living Area |
| Gross Area | 1,965 sqft |
| 1st Floor Area | 1,542 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2003 |
|---|---|
| Effective Year Built | Effective 2004 |
| Lot Area | 7,500 sqft (0.172 acres) |
| Garage Type | Attached |
| Garage Area | 423 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | None |
|---|
| Old Parcel Number | 052-395-020 |
|---|---|
| Street Address | 811 WALNUT AVE |
| City | SONOMA |
| State | CA |
| Zip | 95476-6100 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R15UA |
| Legal Description | 85 FM PT OF 52-395-09 LLA 8220 |
| Legal Subdivision | THE AMENDED MAP OF THE TOWN OF EL VERANO |
| Legal Block | 4 |
| Legal Lot Number | 17-20 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 4 |
| Census Block | 4023 |
| Census Tract | 150304 |
811 Walnut Ave is owned and occupied by two individuals who acquired it in October 2007.
Source: Sonoma County records, as of October 13, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 811 WALNUT AVE, SONOMA, CA 95476-6100 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 9, 2004 · Amount on File |
| Deed Sale | Mar 9, 2004 · Amount on File |
| Prior Sale | Apr 19, 2002 · Amount on File |
| Deed Document Number | 200432318 |
| Last Transfer Date | Oct 9, 2007 |
| Transfer Doc | 0000113693 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 811 Walnut Ave was $10,615 with a homeowner's exemption.
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 | $754,098 (+2%) Land $326,289 Building $427,809 | |
| 2025 | $10,615.00 Homeowner's exemption | $739,313 Land $319,892 Building $419,421 |
| 2023 | $10,177.00 (+7.5%) Homeowner's exemption | $710,607 Land $307,471 Building $403,136 |
| 2022 | $9,467.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 811 Walnut Ave in Zone X, an area of minimal flood risk, though there have been 5 flood claims nearby since 1986.
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.
Wildfire risk around 811 Walnut Ave is low, with a 0.01% annual chance of wildfire.
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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