Sonoma County property record for 21055 River Rd, Geyserville, CA 95441 · Last verified April 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 678 sqft · built 1910 |
| Lot Size | 1.54 acres (67,082 sqft) |
| Owner | Company Name on File |
| Tax Bill | $484 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 140-230-021-000 |
| Primary APN | 140-230-021-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 2 Rooms |
| Stories | 1 Story |
| Building Area | 678 sqft Living Area |
| 1st Floor Area | 678 sqft |
| Basement Area | 200 sqft |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1953 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 67,082 sqft (1.54 acres) |
| Garage Type | Detached |
| Garage Area | 612 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 140-230-021 |
|---|---|
| Street Address | 21055 RIVER RD |
| City | GEYSERVILLE |
| State | CA |
| Zip | 95441-9586 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | UNINCORP COUNTY CA |
| Legal Subdivision | TZABACO RANCHO |
| Legal Block | 1 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | CLOVERDALE-GEYSERVILLE |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 154100 |
Source: Sonoma County records · APN 140-230-021-000
Assessment roll updated April 13, 2026 · Last verified April 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 File |
|---|---|
| Mailing Address | PO BOX 228, GEYSERVILLE, CA 95441-0228 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Mar 18, 2016 |
| Transfer Doc | 0000025229 |
| Record Updated | Jun 08, 2026 |
Source: Sonoma County records · Assessment roll updated April 13, 2026 · Last verified April 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Unified School District | Geyserville Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $484.00 (+2.76%) | $26,665 (+4.03%) Land $11,248 Building $15,417 |
| 2023 | $471.00 (+1.51%) | $25,631 Land $10,812 Building $14,819 |
| 2022 | $464.00 |
Source: FEMA National Flood Hazard Layer, Sonoma County (06097C), updated February 15, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060971541001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Moderate |
| 500-Year Floodplain | Yes |
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Cost | Premium on Record median of 13 individual NFIP policies nearby |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 13 in force |
| Nearby Flood Claims | 32 (1995–2019) |
| Claims Outside the SFHA | 1 of 32 |
| Most Recent Claim | Apr 2019, other causes |
| Claims By Storm |
|
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 12 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 1,200 / 35 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
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