Sonoma County property record for 345 Mountain Ave, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,898 sqft · built 1996 |
| Lot Size | 0.154 acres (6,720 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $134,500 (Jul 1991) |
| Tax Bill | $6,576 (2025) |
| Deeds & Mortgages | Sep 2026 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-271-021-000 |
| Primary APN | 056-271-021-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 3 Rooms |
| Stories | 2 Stories |
| Building Area | 1,898 sqft Living Area |
| Gross Area | 2,414 sqft |
| 1st Floor Area | 760 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1996 |
|---|---|
| Effective Year Built | Effective 1999 |
| Construction Type | Wood |
| Lot Area | 6,720 sqft (0.154 acres) |
| Garage Type | Attached |
| Garage Area | 516 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | HVAC |
|---|---|
| Heating System | Central |
| Old Parcel Number | 056-271-021 |
|---|---|
| Street Address | 345 MOUNTAIN AVE |
| City | SONOMA |
| State | CA |
| Zip | 95476-3442 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R15UA |
| Legal Subdivision | SUBDIVISION #2 OF AGUA CALIENTE PARK |
| Legal Block | 3 |
| Legal Lot Number | 3,2 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 3 |
| Census Block | 3014 |
| Census Tract | 150306 |
Source: Sonoma County records, as of October 13, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 6490 DOYLE ST, EMERYVILLE, CA 94608-1137 |
| Owner Type | Individual |
| Vesting | Unmarried Man |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 18, 1991 · Amount on Record |
| Deed Sale | Jul 18, 1991 · Amount on Record |
| Deed Document Number | 199169107 |
| Last Transfer Date | Feb 11, 2004 |
| Transfer Doc | 0000021059 |
| Record Updated | Oct 29, 2026 |
| Document Type | Executor's Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Sep 29, 2026 |
| Property Address | 345 MOUNTAIN AVE, SONOMA, CA 95476-3442 |
| Document Number | 0000049955 |
| Instrument Date | Sep 3, 2026 |
| Instrument | 202649955 |
| Transaction Type | Transfer |
| Record Updated | Oct 8, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
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 | $422,873 (+2%) Land $126,249 Building $296,624 | |
| 2025 | $6,576.00 (+4.76%) | $414,582 (+4.04%) Land $123,774 Building $290,808 |
| 2023 | $6,277.00 (+6.68%) | $398,485 Land $118,969 Building $279,516 |
| 2022 | $5,884.00 |
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 |
|---|---|
| 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.
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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