Sonoma County property record for 18025 River Rd, Sonoma, CA 95476
| Property Type | Apartments (5+ Units) |
|---|---|
| Lot Size | 0.225 acres (9,810 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $26,100 (May 1988) |
| Tax Bill | $11,619 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-391-003-000 |
| Primary APN | 056-391-003-000 |
|---|---|
| Alternative APN |
|
| Units | 7 Units |
|---|
| Lot Area | 9,810 sqft (0.225 acres) |
|---|
| Cooling System | None |
|---|
| Old Parcel Number | 056-391-003 |
|---|---|
| Street Address | 18025 RIVER RD |
| City | SONOMA |
| State | CA |
| Zip | 95476-3631 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Apartments (5+ Units) |
| Local Zoning Code | R15UA |
| Legal Description | BOYES SPRINGS HOTEL GROUNDS LOTS 140 & 141 |
| Legal Subdivision | BOYES SPRINGS |
| Legal Block | 4 |
| Legal Lot Number | 140 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 4 |
| Census Block | 4011 |
| Census Tract | 150305 |
18025 River Rd, a residential property, is owned by two individuals who bought it in May 1988.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 17681 CARRIGER RD, SONOMA, CA 95476-4029 |
| 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.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 5, 1988 · Amount on File |
| Deed Sale | May 5, 1988 · Amount on File |
| Deed Document Number | 198835502 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 18025 River Rd was $11,619.
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 | $333,705 (+1.9%) Land $97,604 Building $236,101 | |
| 2025 | $11,619.00 | $327,498 Land $95,691 Building $231,807 |
| 2023 | $10,566.00 (+4.2%) | $314,623 Land $91,976 Building $222,647 |
| 2022 | $10,140.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 18025 River Rd in Zone X, an area of minimal flood risk, within 500 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 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 1 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.
Wildfire risk around 18025 River Rd 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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