Contra Costa County property record for 4830 Discovery Pt, Discovery Bay, CA 94505
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,975 sqft · built 1979 |
| Lot Size | 0.245 acres (10,688 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $204,000 (Jun 1997) |
| Tax Bill | $5,415 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 004-032-057-4 |
| Primary APN | 004-032-057-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 1,975 sqft Living Area |
| 1st Floor Area | 1,102 sqft |
| 2nd Floor Area | 873 sqft |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1981 |
| Lot Area | 10,688 sqft (0.245 acres) |
| View / Lot | Lake |
| Garage Type | Attached |
| Garage Area | 438 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4830 DISCOVERY PT |
|---|---|
| City | DISCOVERY BAY |
| State | CA |
| Zip | 94505-9522 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | F1 |
| Legal Description | T05811 L0015 B EX 3/4 MR |
| Legal Tract | 05811 |
| Legal Lot Number | 15 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 304004 |
4830 Discovery Pt is owned and occupied by two individuals who acquired it in August 2007.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4830 DISCOVERY PT, DISCOVERY BAY, CA 94505-9522 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | Jun 5, 1997 · Amount on File |
| Deed Sale | Jun 5, 1997 · Amount on File |
| Deed Document Number | 199796336 |
| Last Transfer Date | Aug 15, 2007 |
| Transfer Doc | 0000242588 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 4830 Discovery Pt was $5,415.
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 | $338,865 (+2%) Land $156,973 Building $181,892 | |
| 2025 | $5,415.00 | $332,222 Land $153,896 Building $178,326 |
| 2023 | $5,016.00 (+1.52%) | $319,323 Land $147,921 Building $171,402 |
| 2022 | $4,941.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4830 Discovery 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 4830 Discovery Pt is moderate, ranking above 47% of the US, with a 0.08% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 47% of the US · lower than 72% of California |
|---|---|
| Wildfire Likelihood | 0.08% 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 226 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 |
May also be available: AT&T, T-Mobile.
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