Contra Costa County property record for 2290 Winchester Loop, Discovery Bay, CA 94505
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,794 sqft · built 2003 |
| Lot Size | 0.161 acres (7,000 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $9,239 (2025) |
| Deeds & Mortgages | Jul 2019 Transfer |
| Flood Zone | Zone X (moderate risk) |
| APN | 011-410-048 |
| Primary APN | 011-410-048 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 1 Story |
| Building Area | 2,794 sqft Living Area |
| 1st Floor Area | 2,794 sqft |
| Year Built | Built 2003 |
|---|---|
| Effective Year Built | Effective 2003 |
| Architectural Style | Cluster |
| Lot Area | 7,000 sqft (0.161 acres) |
| View / Lot | Lake |
| Garage Type | Attached |
| Garage Area | 420 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 2290 WINCHESTER LOOP |
|---|---|
| City | DISCOVERY BAY |
| State | CA |
| Zip | 94505-1850 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | P1 |
| Legal Description | T8429 L48 |
| Legal Subdivision | SUBDIVISION 8429 |
| Legal Tract | 8429 |
| Legal Lot Number | 48 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3016 |
| Census Tract | 304007 |
Source: Contra Costa County records, as of July 14, 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 Record |
|---|---|
| Mailing Address | 2290 WINCHESTER LOOP, DISCOVERY BAY, CA 94505-1850 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 30, 2002 |
| Deed Sale | Aug 30, 2002 |
| Deed Document Number | 2002307567 |
| Last Transfer Date | Jun 30, 2016 |
| Transfer Doc | 0000175812 |
| Record Updated | Oct 29, 2026 |
| Document Type | Affidavit of Death |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 10, 2019 |
| Property Address | 2290 WINCHESTER LOOP, DISCOVERY BAY, CA 94505-1850 |
| Document Number | 0000105925 |
| Instrument Date | Jul 5, 2019 |
| Instrument | 105925 |
| Transaction Type | Transfer |
| Record Updated | Jul 17, 2019 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | PO BOX 851 CLAYTON CA 945170851, CLAYTON, CA 94517-0851 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Elementary School District | Byron Union Elementary School District (KG - 08) |
| Secondary School District | Liberty Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $663,608 (+2%) Land $181,269 Building $482,339 | |
| 2025 | $9,239.00 (+6.69%) Homeowner's exemption | $650,597 (+4.04%) Land $177,715 Building $472,882 |
| 2023 | $8,660.00 (+1.68%) Homeowner's exemption | $625,335 Land $170,815 Building $454,520 |
| 2022 | $8,517.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 94% of the US · lower than 96% of California |
|---|---|
| Wildfire Likelihood | 0.01% 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 DISCOVERY BAY serves 16,790 people · EPA ID CA0710009 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Mar 2023 |
| Lead | Under 1 ppb (2022–2024) 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 483 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: Verizon.
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