Contra Costa County property record for 4690 Discovery Pt, Discovery Bay, CA 94505
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3.5 ba · 2,884 sqft · built 1979 |
| Lot Size | 0.389 acres (16,962 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $823,000 (May 2006) |
| Tax Bill | $17,343 (2025) |
| Deeds & Mortgages | Dec 2017 Line of Credit |
| Flood Zone | Zone X (moderate risk) |
| APN | 004-032-043-4 |
| Primary APN | 004-032-043-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,884 sqft Living Area |
| 1st Floor Area | 1,957 sqft |
| 2nd Floor Area | 927 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 2005 |
| Lot Area | 16,962 sqft (0.389 acres) |
| View / Lot | Canal |
| Garage Type | Attached |
| Garage Area | 470 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 4690 DISCOVERY PT |
|---|---|
| City | DISCOVERY BAY |
| State | CA |
| Zip | 94505-9469 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | F1 |
| Legal Description | T05811 L0001 B EX 3/4 MR |
| Legal Subdivision | SUBDIVISION 5811 |
| Legal Tract | 05811 |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 304004 |
4690 Discovery Pt is owned by two individuals who bought it in May 2006.
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 241 SANTIAGO LN, DANVILLE, CA 94526-1976 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 2, 2006 · Amount on File |
| Deed Sale | May 2, 2006 · Amount on File |
| Deed Document Number | 2006136835 |
| Prior Transfer Date | May 28, 1997 |
| Prior Transfer Doc | 0000103814 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4690 DISCOVERY PT, DISCOVERY BAY, CA 94505-9469 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | LAWYERS TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000228583 |
|---|---|
| Date | Dec 6, 2017 |
| Instrument | 2017-228583 |
| Name | MUFG UNION BANK NA |
|---|---|
| Type | Bank |
| Address | DISCOVERY BAY, CA 94505 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
The 2025 property tax bill for 4690 Discovery Pt was $17,343.
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 | $1,448,564 (+2%) Land $627,254 Building $821,310 | |
| 2025 | $17,343.00 | $1,420,161 Land $614,955 Building $805,206 |
| 2023 | $16,383.00 (+1.59%) | $1,365,017 Land $591,077 Building $773,940 |
| 2022 | $16,127.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4690 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 4690 Discovery Pt 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 94% of the US · lower than 96% 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 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 377 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 DSL | 100 / 20 |
May also be available: Matrix Broadband.
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