Contra Costa County property record for 4857 S Pt, Discovery Bay, CA 94505
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 4 ba · 4,022 sqft · built 2003 |
| Lot Size | 0.207 acres (9,000 sqft) |
| Owner | Individual Name on File |
| Last Sale | $835,000 (Jul 2015) |
| Tax Bill | $12,610 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 004-120-035-3 |
| Primary APN | 004-120-035-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 13 Rooms |
| Stories | 2 Stories |
| Building Area | 4,022 sqft Living Area |
| 1st Floor Area | 2,072 sqft |
| 2nd Floor Area | 1,950 sqft |
| Year Built | Built 2003 |
|---|---|
| Effective Year Built | Effective 2004 |
| Lot Area | 9,000 sqft (0.207 acres) |
| View / Lot | Waterfront |
| Garage Type | Attached |
| Garage Area | 587 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 4857 SOUTH PT |
|---|---|
| City | DISCOVERY BAY |
| State | CA |
| Zip | 94505-9491 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | F1 |
| Legal Description | TRACT 4206 LOT 61 EX MR |
| Legal Subdivision | THE DISCOVERY BAY HOA SUBDIVISION 4206 |
| Legal Tract | 4206 |
| Legal Lot Number | 61 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 304004 |
4857 S Pt is owned by an individual who bought it in July 2015.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 3326 DESERTWOOD LN, SAN JOSE, CA 95132-3523 |
| Owner Type | Individual |
| Vesting | Single Person |
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 | Jul 22, 2015 · Amount on File |
| Deed Sale | Jul 22, 2015 · Amount on File |
| Prior Sale | Nov 30, 1998 · Amount on File |
| Deed Document Number | 2015152130 |
| Prior Transfer Date | Mar 20, 2012 |
| Prior Transfer Doc | 0000067980 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4857 S Pt was $12,610.
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 | $1,008,232 (+2%) Land $338,088 Building $670,144 | |
| 2025 | $12,610.00 | $988,463 Land $331,459 Building $657,004 |
| 2023 | $11,873.00 (+1.58%) | $950,082 Land $318,589 Building $631,493 |
| 2022 | $11,688.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4857 S Pt in Zone X, an area of moderate flood risk, within 100 ft of a high-risk flood zone.
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 AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 10 (1982–2017) |
| Claims Outside the SFHA | 4 of 10 |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, And Mudslides |
| Claims by Event |
|
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 4857 S Pt is low, with a 0.01% annual chance of wildfire.
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 403 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 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
May also be available: Matrix Broadband.
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