Sonoma County property record for 863 4th St W, Sonoma, CA 95476
| Property Type | Home Plus Accessory Dwelling Unit |
|---|---|
| Details | 4 bd · 3 ba · 1,932 sqft · built 2021 |
| Lot Size | 0.142 acres (6,217 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $1,350,000 (Apr 2021) |
| Tax Bill | $18,187 (2025) |
| Deeds & Mortgages | Jan 2023 Transfer Apr 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 018-392-066-000 |
| Primary APN | 018-392-066-000 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,932 sqft Living Area |
| Year Built | Built 2021 |
|---|---|
| Construction Type | Wood |
| Lot Area | 6,217 sqft (0.142 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 863 4TH ST W |
|---|---|
| City | SONOMA |
| State | CA |
| Zip | 95476-6850 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home Plus Accessory Dwelling Unit |
| Legal Description | 2020 MOCKINGBIRD LANE LOT 15 |
| Legal Lot Number | 15 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 150204 |
Source: Sonoma County records, as of October 6, 2025
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Co-owner | Co-owner on Record |
| Mailing Address | 863 4TH ST W, SONOMA, CA 95476-6850 |
| Occupancy | Owner Occupied |
| Owner Type | Company, Secondary Individual |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jan 27, 2023 | Intrafamily Transfer, Transfer |
| Apr 27, 2021 | Grant Deed, Transfer · Conventional Mortgage HOMEBRIDGE FINANCIAL SERVICES INC |
| Deed Names | 3 Names on Deed |
|---|---|
| Last Sale | Apr 27, 2021 · Amount on Record |
| Deed Sale | Apr 27, 2021 · Amount on Record |
| Prior Sale | Apr 27, 2021 · Amount on Record |
| Deed Document Number | 0000051375 |
| Last Transfer Date | Jan 27, 2023 |
| Transfer Doc | 0000003557 |
| Record Updated | Jun 8, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jan 27, 2023 |
| Property Address | 863 4TH ST W, SONOMA, CA 95476-6850 |
| Document Number | 0000003557 |
| Map Reference | MB 809 PG 4-9 |
| Instrument Date | Jan 23, 2023 |
| Instrument | 2023003557 |
| Transaction Type | Transfer |
| Record Updated | Aug 17, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 863 4TH ST W # 865, 865, SONOMA, CA 95476-6850 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Apr 27, 2021 |
| Property Address | 863 4TH ST W, SONOMA, CA 95476-6850 |
| Document Number | 0000051375 |
| Map Reference | MB 809 PG 4-9 |
| Instrument Date | Apr 1, 2021 |
| Instrument | 2021051375 |
| Transaction Type | Transfer |
| Record Updated | Aug 17, 2023 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,485.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 863 AND 865 FOURTH STREET WEST, SONOMA, CA 95476-6850 |
| Document Number | 0000051376 |
|---|---|
| Date | Apr 27, 2021 |
| Instrument | 2021051376 |
| Name | HOMEBRIDGE FINANCIAL SERVICES INC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 1, 2051 |
Source: Sonoma County assessment roll, as of July 1, 2025
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Sonoma City |
| Unified School District | Sonoma Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $18,187.00 (+3.83%) | $1,461,172 (+4.04%) Land $432,972 Building $1,028,200 |
| 2023 | $17,516.00 (-0.47%) | $1,404,435 Land $416,160 Building $988,275 |
| 2022 | $17,599.00 |
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 |
|---|---|
| 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 12 policies |
| Nearby Flood Policies | 12 in force |
| Nearby Flood Claims | 1 (2008) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 2008 |
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 | CITY OF SONOMA serves 10,619 people · EPA ID CA4910012 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2024 |
| Lead | Under 1 ppb (2021–2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| 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 662 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 Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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