Sonoma County property record for 658 Walnut Ave, Sonoma, CA 95476
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 1,800 sqft · built 1970 |
| Lot Size | 0.161 acres (7,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $725,000 (Jun 2020) |
| Tax Bill | $11,797 (2025) |
| Deeds & Mortgages | May 2022 Transfer Jun 2020 Sale & Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 052-413-016-000 |
| Primary APN | 052-413-016-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,800 sqft Living Area |
| 1st Floor Area | 1,800 sqft |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 7,000 sqft (0.161 acres) |
| Cooling System | None |
|---|
| Old Parcel Number | 052-413-016 |
|---|---|
| Street Address | 658 WALNUT AVE |
| City | SONOMA |
| State | CA |
| Zip | 95476-6118 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R15UA |
| Legal Description | BLK 55 PART OF LOT 1,2 |
| Legal Subdivision | AMENDED MAP OF THE TOWN OF EL VERANO |
| Legal Block | 4 |
| Legal Lot Number | 1 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 4 |
| Census Block | 4021 |
| Census Tract | 150304 |
658 Walnut Ave, a duplex, is owned and occupied by two individuals who acquired it in May 2022.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 658 WALNUT AVE, SONOMA, CA 95476-6118 |
| 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.
| Date | Document |
|---|---|
| May 17, 2022 | Intrafamily Transfer, Transfer FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Jun 19, 2020 | Grant Deed, Transfer · FHA Mortgage MASON MCDUFFIE MORTGAGE CORP |
| Jan 8, 2020 | Deed of Trust, Mortgage · Conventional Mortgage BANK OF THE WEST |
| Sep 19, 2019 | Trustee's Deed, Foreclosure TITLE SERVICE AND LIAISON COMPANIES, SYNRGO INC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 19, 2020 · Amount on File |
| Deed Sale | Jun 19, 2020 · Amount on File |
| Prior Sale | Sep 19, 2019 · Amount on File |
| Deed Document Number | 202048886 |
| Last Transfer Date | May 12, 2022 |
| Transfer Doc | 0000034978 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | May 17, 2022 |
| Property Address | 658 WALNUT AVE, SONOMA, CA 95476-6118 |
| Document Number | 0000034978 |
| Map Reference | MB 19 PG 25 |
| Instrument Date | May 12, 2022 |
| Instrument | 2022034978 |
| Transaction Type | Transfer |
| Record Updated | May 31, 2022 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 658 WALNUT AVE, SONOMA, CA 95476-6118 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jun 19, 2020 |
| Property Address | 658 WALNUT AVE, SONOMA, CA 95476-6118 |
| Document Number | 0000048886 |
| Map Reference | MB 19 PG 25 |
| Instrument Date | Jun 11, 2020 |
| Instrument | 2020048886 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $797.50 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 658 WALNUT AVE, SONOMA, CA 95476-6118 |
| Document Number | 0000048887 |
|---|---|
| Date | Jun 19, 2020 |
| Instrument | 2020048887 |
| Name | MASON MCDUFFIE MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jul 1, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 658 WALNUT AVE, SONOMA, CA 95476-6118 |
| Document Number | 0000007278 |
| Instrument Date | Jan 8, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Feb 24, 2020 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 2015 MANHATTAN BEACH BLVD #100 REDONDO BEACH CA 902781230, 100, REDONDO BEACH, CA 90278-1230 |
| Document Number | 0000007278 |
|---|---|
| Date | Jan 30, 2020 |
| Instrument | 7278 |
| Name | BANK OF THE WEST |
|---|---|
| Type | Bank |
| Address | SAN RAMON, CA 94583 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Trustee's Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Sep 19, 2019 |
| Property Address | 658 WALNUT AVE, SONOMA, CA 95476-6118 |
| Document Number | 0000066792 |
| Instrument Date | Sep 5, 2019 |
| Instrument | 66792 |
| Transaction Type | Foreclosure |
| Record Updated | Oct 3, 2019 |
| Title Company | TITLE SERVICE AND LIAISON COMPANIES, SYNRGO INC |
| Amount | Amount on Record |
|---|---|
| Tax | $533.50 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 2015 MANHATTAN BEACH BLVD #100 REDONDO BEACH CA 902781230, 100, REDONDO BEACH, CA 90278-1230 |
| Investor | Possibly a Property Investor |
The 2025 property tax bill for 658 Walnut Ave was $11,797 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 | $808,746 (+2%) Land $317,920 Building $490,826 | |
| 2025 | $11,797.00 Homeowner's exemption | $792,889 Land $311,687 Building $481,202 |
| 2023 | $11,166.00 (+3.79%) | $762,102 Land $299,585 Building $462,517 |
| 2022 | $10,758.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 658 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 658 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 247 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 |
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