Sonoma County property record for 18503 Wellesley Ct, Sonoma, CA 95476
| Property Type | Planned Unit Development |
|---|---|
| Details | 3 bd · 2.5 ba · 2,160 sqft · built 1988 |
| Lot Size | 0.051 acres (1 sqft) |
| Owner | Individual Name on File |
| Last Sale | $265,000 (Dec 2010) |
| Tax Bill | $5,539 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 052-820-016-000 |
| Primary APN | 052-820-016-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 3 Rooms |
| Stories | 2 Stories |
| Building Area | 2,160 sqft Living Area |
| Gross Area | 2,644 sqft |
| 1st Floor Area | 1,104 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 1 sqft (0.051 acres) |
| Garage Type | Attached |
| Garage Area | 484 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|---|
| Heating System | Central |
| Old Parcel Number | 052-820-016 |
|---|---|
| Street Address | 18503 WELLESLEY CT |
| City | SONOMA |
| State | CA |
| Zip | 95476-4172 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Planned Unit Development |
| Local Zoning Code | PC190UMX |
| Legal Description | LOT 16 SONOMA GREEN UNIT 2 |
| Legal Subdivision | SONOMA GREEN |
| Legal Block | 2 |
| Legal Lot Number | 16 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 150304 |
Source: Sonoma County assessment roll, as of April 13, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 18503 WELLESLEY CT, SONOMA, CA 95476-4172 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 27, 2010 · Amount on Record |
| Deed Sale | Dec 27, 2010 · Amount on Record |
| Prior Sale | Feb 19, 2010 · Amount on Record |
| Deed Document Number | 2010117930 |
| Prior Transfer Date | Apr 19, 2008 |
| Prior Transfer Doc | 0000037339 |
| Record Updated | Jun 8, 2026 |
Source: Sonoma County assessment roll, as of April 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Unified School District | Sonoma Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $5,539.00 (+2.16%) | $339,500 (+4.04%) Land $102,487 Building $237,013 |
| 2023 | $5,422.00 (+3.39%) | $326,318 Land $98,508 Building $227,810 |
| 2022 | $5,244.00 |
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 X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 2 (2005–2017) |
| Most Recent Claim | Feb 2017 · Severe Winter Storms, Flooding, And Mudslides |
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 | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | VALLEY OF THE MOON WATER DISTRICT serves 23,140 people · EPA ID CA4910013 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Sep 2022 |
| Lead | Under 1 ppb (2024–2026) 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 405 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 DSL · Fiber in parts of the area | 100 / 20 |
May also be available: T-Mobile USA, Verizon.
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