Sonoma County property record for 9819 Rosina Ct, Windsor, CA 95492
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,010 sqft · built 1989 |
| Lot Size | 0.26 acres (11,326 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $829,000 (Jan 2025) |
| Tax Bill | $8,230 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 066-420-044-000 |
| Primary APN | 066-420-044-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 3 Rooms |
| Stories | 2 Stories |
| Building Area | 2,010 sqft Living Area |
| 1st Floor Area | 1,218 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 11,326 sqft (0.26 acres) |
| Garage Area | 447 sqft |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 066-420-044 |
|---|---|
| Street Address | 9819 ROSINA CT |
| City | WINDSOR |
| State | CA |
| Zip | 95492-8503 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYWI |
| Legal Description | TRACT 756 LOT 18 |
| Legal Subdivision | STARBURST ESTATES |
| Legal Tract | 756 |
| Legal Block | 3 |
| Legal Lot Number | 18 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | HEALDSBURG |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 153810 |
9819 Rosina Ct is owned and occupied by two individuals who bought it in January 2025.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 9819 ROSINA CT, WINDSOR, CA 95492-8503 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
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 | Jan 13, 2025 · Amount on File |
| Deed Sale | Jan 13, 2025 · Amount on File |
| Prior Sale | Nov 17, 2003 · Amount on File |
| Deed Document Number | 20251401 |
| Prior Transfer Date | Feb 29, 2016 |
| Prior Transfer Doc | 0000014834 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 9819 Rosina Ct was $8,230.
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Windsor Town |
| Unified School District | Windsor Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $845,580 (+23.91%) Land $336,600 Building $508,980 | |
| 2025 | $8,230.00 | $682,440 Land $284,348 Building $398,092 |
| 2023 | $7,897.00 (+1.75%) | $655,942 Land $273,307 Building $382,635 |
| 2022 | $7,761.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 9819 Rosina Ct in Zone X, an area of minimal flood risk.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 2 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 9819 Rosina Ct 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 95% of the US · lower than 97% 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 | TOWN OF WINDSOR serves 25,561 people · EPA ID CA4910017 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Aug 2022 |
| 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.
Source: FCC Broadband Data Collection, based on 411 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Starlink Satellite | 280 / 30 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
May also be available: GeoLinks, T-Mobile, Verizon.
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