Sonoma County property record for 20399 River Blvd, Monte Rio, CA 95462
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 960 sqft · built 1925 |
| Lot Size | 0.092 acres (4,000 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $558,000 (Sep 2024) |
| Tax Bill | $6,835 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 095-232-006-000 |
| Primary APN | 095-232-006-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 960 sqft Living Area |
| 1st Floor Area | 960 sqft |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 4,000 sqft (0.092 acres) |
| Cooling System | None |
|---|---|
| Heating System | Baseboard |
| Heating Fuel | Electric |
| Old Parcel Number | 095-232-006 |
|---|---|
| Street Address | 20399 RIVER BLVD |
| City | MONTE RIO |
| State | CA |
| Zip | 95462 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RR1 |
| Legal Description | EAST MONTE RIO ADDIT 1 BLK 2 LOT 12 |
| Legal Subdivision | EAST MONTE RIO ADD |
| Legal Block | 2 |
| Legal Lot Number | 12 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | RUSSIAN RIVER-SONOMA COAST |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 153708 |
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 | 2 Company Names on Record |
|---|---|
| Mailing Address | 2425 SAN CARLOS AVE, SAN CARLOS, CA 94070-1710 |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 23, 2024 · Amount on Record |
| Deed Sale | Sep 23, 2024 · Amount on Record |
| Prior Sale | Sep 8, 2006 · Amount on Record |
| Deed Document Number | 202443586 |
| Prior Transfer Date | Aug 15, 2006 |
| Prior Transfer Doc | 0000111009 |
| Record Updated | Oct 29, 2026 |
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Secondary School District | West Sonoma County Union High School District (09 - 12) |
| Elementary School District | Monte Rio Union Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $569,160 (+2%) Land $178,500 Building $390,660 | |
| 2025 | $6,835.00 (+19.89%) | $558,000 (+21.7%) Land $175,000 Building $383,000 |
| 2023 | $5,701.00 (+2.02%) | $458,504 Land $218,911 Building $239,593 |
| 2022 | $5,588.00 |
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 AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | Yes |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 64 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 64 in force |
| Nearby Flood Claims | 47 (1995–2025) |
| Most Recent Claim | Feb 2025 · river or lake flooding |
| Claims by Event |
|
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 | Moderate above 47% of the US · lower than 72% of California |
|---|---|
| Wildfire Likelihood | 0.08% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 | SWEETWATER SPRINGS CWD - MONTE RIO serves 3,531 people · EPA ID CA4910028 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2021 |
| Lead | Under 1 ppb (2023–2025) 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 128 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
5G and 4G LTE (outdoors only)
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