Sonoma County property record for 400 Mountain Ave, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,097 sqft · built 1984 |
| Lot Size | 0.27 acres (11,761 sqft) |
| Owner | Trust Name on File |
| Last Sale | $1,500,000 (Oct 2020) |
| Tax Bill | $19,912 (2025) |
| Deeds & Mortgages | Oct 2020 Sale & Mortgage Sep 2018 Transfer + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-282-012-000 |
| Primary APN | 056-282-012-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 3 Rooms |
| Stories | 2 Stories |
| Building Area | 2,097 sqft Living Area |
| 1st Floor Area | 1,514 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 11,761 sqft (0.27 acres) |
| Garage Type | Carport |
| Garage Area | 288 sqft |
| Carport | Carport |
| Carport Area | 288 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 056-282-012 |
|---|---|
| Street Address | 400 MOUNTAIN AVE |
| City | SONOMA |
| State | CA |
| Zip | 95476-3443 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R15UA |
| Legal Description | 83 FM 56-321-26 CW PT 56-282-01 PM 7498 PCL 2 |
| Legal Subdivision | PARCEL MAP NO 7498 |
| Legal Block | 2 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 150306 |
400 Mountain Ave is held in a trust since October 2020.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 92 HOMESTEAD ST, SAN FRANCISCO, CA 94114-3518 |
| Owner Type | Company |
| Vesting | Trust |
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 |
|---|---|
| Oct 13, 2020 | Grant Deed, Transfer · Conventional Mortgage BANK OF AMERICA NA |
| Sep 25, 2018 | Quit Claim Deed, Transfer NORTH AMERICAN TITLE |
| Sep 12, 2018 | Deed of Trust, Mortgage · Conventional Mortgage FIRST REPUBLIC BK |
| Apr 18, 2017 | Grant Deed, Transfer · Conventional Mortgage STONEGATE MORTGAGE CORP |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 13, 2020 · Amount on File |
| Deed Sale | Oct 13, 2020 · Amount on File |
| Prior Sale | Apr 18, 2017 · Amount on File |
| Deed Document Number | 202092976 |
| Prior Transfer Date | Sep 12, 2018 |
| Prior Transfer Doc | 0000067324 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Oct 13, 2020 |
| Property Address | 400 MOUNTAIN AVE, SONOMA, CA 95476-3443 |
| Document Number | 0000092976 |
| Map Reference | MB 341 PG 6&7 |
| Instrument Date | Oct 8, 2020 |
| Instrument | 2020092976 |
| 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 | $1,650.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 92 HOMESTEAD ST, SAN FRANCISCO, CA 94114-3518 |
| Document Number | 0000092977 |
|---|---|
| Date | Oct 13, 2020 |
| Instrument | 2020092977 |
| Name | BANK OF AMERICA NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.62% |
| Type Change Date | Nov 1, 2030 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 7.62% |
| Index | 1-Year LIBOR |
| Max Rate | 7.62% |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Sep 25, 2018 |
| Property Address | 400 MOUNTAIN AVE, SONOMA, CA 95476-3443 |
| Document Number | 0000067324 |
| Instrument Date | Sep 12, 2018 |
| Instrument | 67324 |
| Transaction Type | Transfer |
| Record Updated | Nov 22, 2018 |
| Title Company | NORTH AMERICAN TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 400 MOUNTAIN AVE SONOMA CA 954763443, SONOMA, CA 95476-3443 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 400 MOUNTAIN AVE, SONOMA, CA 95476-3443 |
| Document Number | 0000067325 |
| Instrument Date | Sep 12, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Oct 11, 2018 |
| Title Company | NORTH AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Address | 400 MOUNTAIN AVE SONOMA CA 954763443, SONOMA, CA 95476-3443 |
| Document Number | 0000067325 |
|---|---|
| Date | Sep 25, 2018 |
| Instrument | 67325 |
| Name | FIRST REPUBLIC BK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 300 Months |
| Due | Sep 24, 2043 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Apr 18, 2017 |
| Property Address | 400 MOUNTAIN AVE, SONOMA, CA 95476-3443 |
| Document Number | 0000029673 |
| Map Reference | PM7498 MB341 PG6&7 |
| Instrument Date | Apr 12, 2017 |
| Instrument | 2017029673 |
| 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 | $0.00 |
| Amount Accuracy | Calculated from Transfer Tax |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 400 MOUNTAIN AVE, SONOMA, CA 95476-3443 |
| Document Number | 0000029674 |
|---|---|
| Date | Apr 18, 2017 |
| Instrument | 2017029674 |
| Name | STONEGATE MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2047 |
The 2025 property tax bill for 400 Mountain Ave was $19,912.
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 | $1,756,078 (+8.16%) Land $441,631 Building $1,314,447 | |
| 2025 | $19,912.00 | $1,623,646 Land $432,972 Building $1,190,674 |
| 2023 | $19,058.00 (+1.71%) | $1,560,600 Land $416,160 Building $1,144,440 |
| 2022 | $18,738.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 400 Mountain 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 400 Mountain Ave is low, with a 0.04% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.04% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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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