Sonoma County property record for 509 Gertrude Dr, Windsor, CA 95492
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,882 sqft · built 1989 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $190,000 (Nov 1993) |
| Tax Bill | $4,070 (2025) |
| Deeds & Mortgages | Sep 2022 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 161-180-049-000 |
| Primary APN | 161-180-049-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 1,882 sqft Living Area |
| 1st Floor Area | 1,882 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 6,000 sqft (0.138 acres) |
| Garage Area | 400 sqft |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 161-180-049 |
|---|---|
| Street Address | 509 GERTRUDE DR |
| City | WINDSOR |
| State | CA |
| Zip | 95492-8891 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYWI |
| Legal Description | 91 FM 65-810-49 # CHG PER MD LT 79 LAKEWOOD GLEN2 |
| Legal Subdivision | LAKEWOOD GLEN |
| Legal Tract | 813 |
| Legal Block | 1 |
| Legal Lot Number | 79 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | HEALDSBURG |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 153804 |
509 Gertrude Dr is owner-occupied and held in a trust since February 2024.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 509 GERTRUDE DR, WINDSOR, CA 95492-8891 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
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 | Nov 16, 1993 · Amount on File |
| Deed Sale | Nov 16, 1993 · Amount on File |
| Deed Document Number | 1993147095 |
| Last Transfer Date | Feb 16, 2024 |
| Transfer Doc | 0000007825 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 509 GERTRUDE DR, WINDSOR, CA 95492-8891 |
| Transaction Type | Mortgage |
| Record Updated | Oct 17, 2022 |
| Title Company | FIRST AMER TTL CO SANTA ROSA |
| Name | Verified Name |
|---|---|
| Address | 509 GERTRUDE DR, WINDSOR, CA 95492-8891 |
| Document Number | 0000062920 |
|---|---|
| Date | Sep 28, 2022 |
| Instrument | 2022062920 |
| Name | REDWOOD CU |
|---|---|
| Type | Credit Union |
| Address | SANTA ROSA, CA 95403 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 301 Months |
| Due | Oct 15, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
The 2025 property tax bill for 509 Gertrude Dr was $4,070 with a homeowner's exemption.
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 | $329,393 (+2%) Land $130,021 Building $199,372 | |
| 2025 | $4,070.00 Homeowner's exemption | $322,935 Land $127,472 Building $195,463 |
| 2023 | $3,907.00 (+1.77%) Homeowner's exemption | $310,397 Land $122,523 Building $187,874 |
| 2022 | $3,839.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 509 Gertrude Dr in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1997.
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 | 1 in force |
| Nearby Flood Claims | 1 (1997) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jan 1997 · Severe Storms, Flooding, Mud And Landslides |
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 509 Gertrude Dr 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Indirect within 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 263 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| AT&T DSL | 100 / 20 |
May also be available: Verizon.
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