Sonoma County property record for 320 1st St E, Sonoma, CA 95476 · Last verified April 2026
| Property Type | Public Works > State Owned (Exempt) |
|---|---|
| Bathrooms | 1 Baths |
| Year Built | Built 1957 |
| Square Footage | 1,519 sqft Gross Area |
| Lot Size | 15,444 sqft (0.355 acres) |
| Tax Bill | $2,856.00 (2025) |
| Primary APN | 018-171-025-000 |
|---|---|
| Alternative APN |
|
| Full Baths | 1 Baths |
|---|---|
| Total Rooms | 4 Rooms |
| Building Area | 1,519 sqft Gross Area |
| Stories | 1 Stories |
| Year Built | Built 1957 |
|---|---|
| Effective Year Built | Effective 1957 |
| Lot Area | 15,444 sqft (0.355 acres) |
| Total Buildings | 2 Total Buildings |
| Street Address | 320 1ST ST E |
|---|---|
| City | SONOMA |
| State | CA |
| Zip | 95476-5705 |
| Property Usage | Land which may be one of the following: Public spaces (i.e. parks and beaches), public buildings (i.e. schools, hospitals, courthouse), public services (i.e. water treatment, electrical grid/product, dams) Property Usage |
| Type | Public Works > State Owned (Exempt) |
| Legal Block | 1 |
| Jurisdiction | SONOMA CA |
| Minor Civil Division | SONOMA |
| Census Blockgroup | 1 |
| Census Block | 1003 |
| Census Tract | 150206 |
Source: Sonoma County records · APN 018-171-025-000
Assessment roll updated April 13, 2026 · Last verified April 2026
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| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 845 CASA GRANDE RD, PETALUMA, CA 94954-5804 |
| Owner Type | Owner is a Company |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Refreshed | Jun 08, 2026 |
Source: Sonoma County records · Assessment roll updated April 13, 2026 · Last verified April 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Sonoma City |
| Unified School District | Sonoma Valley Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $2,856.00 (+12.26%) | |
| 2023 | $2,544.00 (+6%) | $35,411 Land $15,703 Building $19,708 |
| 2022 | $2,400.00 |
320 1st St E is in FEMA Zone X, outside the Special Flood Hazard Area, with indirect wildfire exposure (Low risk).
Source: FEMA National Flood Hazard Layer · Sonoma County (06097C), updated February 15, 2026
| FEMA Flood Zone | Zone X minimal flood hazard · outside the 0.2% annual chance floodplain |
|---|---|
| Special Flood Hazard Area | No |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | Low 20th percentile of exposed land nationally · 11th in California |
|---|---|
| Wildfire Likelihood | Low — about 1 in 4,167 per year |
| Exposure | Indirect within ember reach of burnable land |
Values are read at the parcel center point; lenders make the official flood determination.
Source: NPS National Register of Historic Places · August 1, 2026 release
| Historic District | Within the Sonoma Plaza listed 1975 · 31 contributing resources · National Historic Landmark (designated 1960) · NRIS 75000489 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
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