Sonoma County property record for 866 Hayes St, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,813 sqft · built 2021 |
| Lot Size | 0.124 acres (5,393 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $1,140,000 (Jun 2021) |
| Tax Bill | $15,225 (2025) |
| Deeds & Mortgages | Jun 2021 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 018-392-054-000 |
| Primary APN | 018-392-054-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,813 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2021 |
|---|---|
| Effective Year Built | Effective 2021 |
| Lot Area | 5,393 sqft (0.124 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Old Parcel Number | 018-392-054 |
|---|---|
| Street Address | 866 HAYES ST |
| City | SONOMA |
| State | CA |
| Zip | 95476-6847 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 2020 MOCKINGBIRD LANE LOT 3 |
| Legal Subdivision | MOCKINGBIRD LANE |
| Legal Block | 2 |
| Legal Lot Number | 3 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 150204 |
866 Hayes St is owned by a company that bought it in June 2021.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 1506 ARLINGTON BLVD, EL CERRITO, CA 94530-2003 |
| Owner Type | Company |
| Vesting | Limited Liability Company |
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 | Jun 22, 2021 · Amount on File |
| Deed Sale | Jun 22, 2021 · Amount on File |
| Deed Document Number | 202172508 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jun 22, 2021 |
| Property Address | 866 HAYES ST, SONOMA, CA 95476-6847 |
| Document Number | 0000072508 |
| Map Reference | MB 809 PG 4-9 |
| Instrument Date | Apr 29, 2021 |
| Instrument | 2021072508 |
| Transaction Type | Transfer |
| Record Updated | Jul 26, 2022 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Tax | $1,254.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 866 HAYES ST, SONOMA, CA 95476-6847 |
The 2025 property tax bill for 866 Hayes St was $15,225.
Source: Sonoma County assessment roll, as of September 1, 2026
| 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 |
|---|---|---|
| 2026 | $1,258,648 (+2%) Land $441,631 Building $817,017 | |
| 2025 | $15,225.00 | $1,233,970 Land $432,972 Building $800,998 |
| 2023 | $14,603.00 (-0.5%) | $1,186,056 Land $416,160 Building $769,896 |
| 2022 | $14,676.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 866 Hayes St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 File 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.
Wildfire risk around 866 Hayes St 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 | 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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