Sonoma County property record for 423 Chestnut Ave, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,658 sqft · built 2017 |
| Lot Size | 0.341 acres (14,840 sqft) |
| Owner | Trust Name on File |
| Last Sale | $774,500 (May 2013) |
| Tax Bill | $20,462 (2025) |
| Deeds & Mortgages | Aug 2021 Transfer Aug 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-231-009-000 |
| Primary APN | 056-231-009-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 2,658 sqft Living Area |
| Basement Area | 960 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2017 |
|---|---|
| Effective Year Built | Effective 2017 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 14,840 sqft (0.341 acres) |
| Garage Type | Carport |
| Garage Area | 400 sqft |
| Carport | Carport |
| Carport Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 056-231-009 |
|---|---|
| Street Address | 423 CHESTNUT AVE |
| City | SONOMA |
| State | CA |
| Zip | 95476-3416 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RR5 |
| Legal Description | MAP 21 PG 46 PART OF LOT 4 |
| Legal Subdivision | SUBDIVISION #3 AGUA CALIENTE PARK |
| Legal Block | 3 |
| Legal Lot Number | 4 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 150306 |
423 Chestnut Ave is held in a trust since May 2013.
Source: Sonoma County records, as of September 1, 2026
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 | Trust Name on File |
|---|---|
| Mailing Address | 1564 LOMBARD ST, A, SAN FRANCISCO, CA 94123-3151 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Aug 24, 2021 | Intrafamily Transfer, Transfer OLD REPUBLIC TITLE COMPANY |
| Aug 24, 2021 | Intrafamily Transfer, Transfer · Conventional Mortgage ROCKET MORTGAGE LLC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 31, 2013 · Amount on File |
| Deed Sale | May 31, 2013 · Amount on File |
| Prior Sale | Feb 3, 2004 · Amount on File |
| Deed Document Number | 201356438 |
| Prior Transfer Date | Oct 3, 2001 |
| Prior Transfer Doc | 0000139394 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Aug 24, 2021 |
| Property Address | 423 CHESTNUT AVE, SONOMA, CA 95476-3416 |
| Document Number | 0000095713 |
| Map Reference | MB 21 PG 46 |
| Instrument Date | Aug 18, 2021 |
| Instrument | 2021095713 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 423 CHESTNUT AVE, SONOMA, CA 95476-3416 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Aug 24, 2021 |
| Property Address | 423 CHESTNUT AVE, SONOMA, CA 95476-3416 |
| Document Number | 0000095711 |
| Map Reference | MB 21 PG 46 |
| Instrument Date | Jun 29, 2021 |
| Instrument | 2021095711 |
| Transaction Type | Transfer |
| Record Updated | Sep 10, 2021 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 423 CHESTNUT AVE, SONOMA, CA 95476-3416 |
| Document Number | 0000095712 |
|---|---|
| Date | Aug 24, 2021 |
| Instrument | 2021095712 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Sep 1, 2051 |
The 2025 property tax bill for 423 Chestnut Ave was $20,462.
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 | $1,666,489 (+2%) Land $439,612 Building $1,226,877 | |
| 2025 | $20,462.00 | $1,633,814 Land $430,993 Building $1,202,821 |
| 2023 | $19,471.00 (+2.2%) | $1,570,373 Land $414,258 Building $1,156,115 |
| 2022 | $19,051.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 423 Chestnut Ave in Zone X, an area of minimal flood risk.
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 | 2 in force |
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 423 Chestnut Ave is moderate, ranking above 59% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 59% of the US · lower than 64% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Direct burnable vegetation |
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 444 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
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