Sonoma County property record for 18365 Riverside Dr, Sonoma, CA 95476
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 1 ba · 836 sqft · built 1935 |
| Lot Size | 0.356 acres (15,500 sqft) |
| Owner | Trust Name on File |
| Last Sale | $440,000 (Jun 2009) |
| Tax Bill | $9,084 (2025) |
| Deeds & Mortgages | Dec 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 052-231-006-000 |
| Primary APN | 052-231-006-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 2 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 836 sqft Living Area |
| 1st Floor Area | 836 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1935 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 15,500 sqft (0.356 acres) |
| Garage Type | Carport |
| Garage Area | 576 sqft |
| Carport | Carport |
| Carport Area | 576 sqft |
| Cooling System | None |
|---|---|
| Heating System | Floor/Wall Furnace |
| Old Parcel Number | 052-231-006 |
|---|---|
| Street Address | 18365 RIVERSIDE DR |
| City | SONOMA |
| State | CA |
| Zip | 95476-4278 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R15UA |
| Legal Description | CREEK FRONT ADDITION SONOMA VISTA TRACT LOT 30 |
| Legal Subdivision | SONOMA VISTA |
| Legal Block | 2 |
| Legal Lot Number | 30 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 150304 |
18365 Riverside Dr, a duplex, is held in a trust since June 2009.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 1616 PLYMOUTH AVE, SAN FRANCISCO, CA 94127-2118 |
| 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.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 23, 2009 · Amount on File |
| Deed Sale | Jun 23, 2009 · Amount on File |
| Prior Sale | Nov 10, 2005 · Amount on File |
| Deed Document Number | 200960963 |
| Prior Transfer Date | Oct 12, 2001 |
| Prior Transfer Doc | 0000152028 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 18365 RIVERSIDE DR, SONOMA, CA 95476-4278 |
| Transaction Type | Mortgage |
| Record Updated | Oct 21, 2022 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Address | 1616 PLYMOUTH AVE, SAN FRANCISCO, CA 94127-2118 |
| Document Number | 0000123221 |
|---|---|
| Date | Dec 23, 2020 |
| Instrument | 2020123221 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 181 Months |
| Due | Jan 1, 2036 |
The 2025 property tax bill for 18365 Riverside Dr was $9,084.
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 | $577,929 (+2%) Land $183,882 Building $394,047 | |
| 2025 | $9,084.00 | $566,598 Land $180,277 Building $386,321 |
| 2023 | $8,685.00 (+3.05%) | $544,599 Land $173,278 Building $371,321 |
| 2022 | $8,428.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 18365 Riverside Dr in Zone X, an area of minimal flood risk, within 100 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 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 2 (2005–2017) |
| Most Recent Claim | Feb 2017 · Severe Winter Storms, Flooding, And Mudslides |
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 18365 Riverside Dr 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 | 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 711 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Verizon.
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