Sonoma County property record for 18633 Riverside Dr, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 1 bd · 1 ba · 468 sqft · built 1930 |
| Lot Size | 0.168 acres (7,303 sqft) |
| Owner | Company Name on Record |
| Last Sale | $335,000 (Oct 2023) |
| Tax Bill | $6,529 (2025) |
| Deeds & Mortgages | Oct 2023 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 052-281-056-000 |
| Primary APN | 052-281-056-000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 1 Room |
| Stories | 1 Story |
| Building Area | 468 sqft Living Area |
| Gross Area | 808 sqft |
| 1st Floor Area | 468 sqft |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 7,303 sqft (0.168 acres) |
| Garage Type | Attached |
| Garage Area | 340 sqft |
| Parking Spaces | 1 Parking Space |
| Old Parcel Number | 052-281-056 |
|---|---|
| Street Address | 18633 RIVERSIDE DR |
| City | SONOMA |
| State | CA |
| Zip | 95476-4510 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R15UA |
| Legal Description | 2010 FM REM 052-281-054 & PTN 055 LLA 08-0041 |
| Legal Subdivision | RIVERSIDE ADD |
| Legal Block | 2 |
| Legal Lot Number | 4 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 150304 |
Source: Sonoma County records, as of September 1, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 4921 CLAREMONT CT, FAIRFIELD, CA 94534-7426 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 24, 2023 · Amount on Record |
| Deed Sale | Oct 24, 2023 · Amount on Record |
| Prior Sale | Sep 25, 2014 · Amount on Record |
| Deed Document Number | 202349683 |
| Prior Transfer Date | Jul 29, 2009 |
| Prior Transfer Doc | 0000082217 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Oct 24, 2023 |
| Property Address | 18633 RIVERSIDE DR, SONOMA, CA 95476-4510 |
| Document Number | 0000049683 |
| Map Reference | MB 30 PG 15 |
| Instrument Date | Oct 16, 2023 |
| Instrument | 2023049683 |
| Transaction Type | Transfer |
| Record Updated | Nov 6, 2023 |
| Title Company | TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Amount | Amount Recorded |
|---|---|
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $368.50 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4921 CLAREMONT CT, FAIRFIELD, CA 94534-7426 |
| Document Number | 0000049684 |
|---|---|
| Date | Oct 24, 2023 |
| Instrument | 2023049684 |
| Name | MERCHANTS FUNDING AZ LLC |
|---|---|
| Type | Lending Institution |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $431,766 (+75.25%) Land $312,120 Building $119,646 | |
| 2025 | $6,529.00 (+50.61%) | $246,369 (+4.04%) Land $174,263 Building $72,106 |
| 2023 | $4,335.00 (+5.04%) Homeowner's exemption | $236,805 Land $167,498 Building $69,307 |
| 2022 | $4,127.00 |
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 |
|---|---|
| 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.
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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