Sonoma County property record for 18393 Riverside Dr, Sonoma, CA 95476
| Property Type | Duplex |
|---|---|
| Details | 1 bd · 2 ba · 941 sqft · built 2000 |
| Lot Size | 0.629 acres (27,390 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,165,000 (Jun 2018) |
| Tax Bill | $17,960 (2025) |
| Deeds & Mortgages | Nov 2022 Line of Credit Jun 2018 Sale & Mortgage |
| Flood Zone | Zone AE (high risk) |
| APN | 052-231-010-000 |
| Primary APN | 052-231-010-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 2 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 941 sqft Living Area |
| 1st Floor Area | 2,500 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2000 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 27,390 sqft (0.629 acres) |
| Garage Type | Detached |
| Garage Area | 416 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Central |
| Old Parcel Number | 052-231-010 |
|---|---|
| Street Address | 18393 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 ADD TO SONOMA VISTA TRACT LOT 34 |
| Legal Subdivision | SONOMA VISTA |
| Legal Block | 2 |
| Legal Lot Number | 34 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 150304 |
18393 Riverside Dr, a duplex, is owned and occupied by an individual who bought it in June 2018.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 18393 RIVERSIDE DR, SONOMA, CA 95476-4278 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 |
|---|---|
| Nov 21, 2022 | Deed of Trust, Mortgage · Line of Credit REDWOOD CU |
| Jun 22, 2018 | Grant Deed, Transfer REDWOOD CU |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 22, 2018 · Amount on File |
| Deed Sale | Jun 22, 2018 · Amount on File |
| Prior Sale | Aug 8, 2008 · Amount on File |
| Deed Document Number | 201844931 |
| Prior Transfer Date | May 22, 2008 |
| Prior Transfer Doc | 0000050835 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 18393 RIVERSIDE DR, SONOMA, CA 95476-4278 |
| Transaction Type | Mortgage |
| Record Updated | Dec 7, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 18393 RIVERSIDE DR, SONOMA, CA 95476-4278 |
| Document Number | 0000074906 |
|---|---|
| Date | Nov 21, 2022 |
| Instrument | 2022074906 |
| Name | REDWOOD CU |
|---|---|
| Type | Credit Union |
| Address | SANTA ROSA, CA 95403 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 301 Months |
| Due | Dec 15, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jun 22, 2018 |
| Property Address | 18393 RIVERSIDE DR, SONOMA, CA 95476-4278 |
| Document Number | 0000044931 |
| Instrument Date | Jun 11, 2018 |
| Instrument | 44931 |
| Transaction Type | Transfer |
| Record Updated | Jul 5, 2018 |
| Title Company | FIRST AMERICAN TITLE |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,281.50 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 18393 RIVERSIDE DR SONOMA CA 954764278, SONOMA, CA 95476-4278 |
| Document Number | 44932 |
|---|---|
| Date | Jun 22, 2018 |
| Instrument | 44932 |
| Name | REDWOOD CU |
|---|---|
| Type | Credit Union |
| Address | SANTA ROSA, CA 95403 |
| Amount | Amount on Record |
|---|---|
| Term | 360 Months |
| Due | Jun 21, 2048 |
The 2025 property tax bill for 18393 Riverside Dr was $17,960 with a homeowner's exemption.
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 | $1,352,078 (+2%) Land $580,291 Building $771,787 | |
| 2025 | $17,960.00 Homeowner's exemption | $1,325,567 Land $568,913 Building $756,654 |
| 2023 | $17,462.00 (+3.75%) Homeowner's exemption | $1,274,095 Land $546,822 Building $727,273 |
| 2022 | $16,831.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 18393 Riverside Dr in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective February 15, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| 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 18393 Riverside Dr is low, with a 0.02% 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 | 0.02% 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 625 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 in parts of the area | 100 / 20 |
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