Sonoma County property record for 3650 White Alder, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4.5 ba · 6,167 sqft · built 1989 |
| Lot Size | 3.78 acres (165,092 sqft) |
| Owner | Individual Name on File |
| Last Sale | $3,100,000 (Jun 2024) |
| Tax Bill | $36,051 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 142-280-025-000 |
| Primary APN | 142-280-025-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 4 Rooms |
| Stories | 2 Stories |
| Building Area | 6,167 sqft Living Area |
| Gross Area | 7,011 sqft |
| 1st Floor Area | 3,450 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 165,092 sqft |
| Garage Type | Attached |
| Garage Area | 844 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 142-280-025 |
|---|---|
| Street Address | 3650 WHITE ALDER |
| City | SONOMA |
| State | CA |
| Zip | 95476-8963 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | AR10 |
| Legal Description | MAP 342 PG 30 LOT II-29 |
| Legal Subdivision | PHASE II THE GEORGE RANCH |
| Legal Block | 1 |
| Legal Lot Number | II-29 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 150303 |
3650 White Alder is owned and occupied by an individual who bought it in June 2024.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 3650 WHITE ALDER, SONOMA, CA 95476-8963 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Surviving Spouse |
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 | Name on Deed |
|---|---|
| Last Sale | Jun 20, 2024 · Amount on File |
| Deed Sale | Jun 20, 2024 · Amount on File |
| Prior Sale | Jan 26, 1988 · Amount on File |
| Deed Document Number | 202426729 |
| Prior Transfer Date | Jun 14, 2004 |
| Prior Transfer Doc | 0000102560 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 3650 White Alder was $36,051.
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 | $3,225,240 (+2%) Land $1,290,096 Building $1,935,144 | |
| 2025 | $36,051.00 | $3,162,000 Land $1,264,800 Building $1,897,200 |
| 2023 | $16,410.00 (+1.27%) | $1,411,643 Land $310,488 Building $1,101,155 |
| 2022 | $16,205.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 3650 White Alder 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 |
| 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 3650 White Alder is high, ranking above 82% of the US, with a 0.6% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 82% of the US · above 61% of California |
|---|---|
| Wildfire Likelihood | 0.6% annual chance |
| Exposure | Direct burnable vegetation |
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 | GEORGE RANCH MUTUAL WATER COMPANY private · serves 148 people · EPA ID CA4900973 |
|---|---|
| Water Source | Groundwater |
| Lead | 3 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line inventory currently in violation since Oct 2024 |
| Monitoring and Reporting | 1 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 22 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Starlink Satellite | 280 / 30 |
| AT&T DSL | 75 / 20 |
May also be available: Verizon.
5G (outdoors only) and 4G LTE
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