Contra Costa County property record for 3921 Lighthouse Pl, Discovery Bay, CA 94505
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,823 sqft · built 1999 |
| Lot Size | 0.22 acres (9,600 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,450,000 (Dec 2023) |
| Tax Bill | $17,988 (2025) |
| Deeds & Mortgages | Dec 2023 Sale & Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 008-470-010-3 |
| Primary APN | 008-470-010-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,823 sqft Living Area |
| 1st Floor Area | 2,823 sqft |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Lot Area | 9,600 sqft (0.22 acres) |
| View / Lot | Waterfront |
| Garage Type | Attached |
| Garage Area | 705 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 3921 LIGHTHOUSE PL |
|---|---|
| City | DISCOVERY BAY |
| State | CA |
| Zip | 94505-1101 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | P1 |
| Legal Description | T6979 L30 |
| Legal Subdivision | SUBDIVISION 6979 |
| Legal Tract | 6979 |
| Legal Lot Number | 30 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 304004 |
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 Record |
|---|---|
| Mailing Address | 3 RABBIT LN, DARIEN, CT 06820-2822 |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 8, 2023 · Amount on Record |
| Deed Sale | Dec 8, 2023 · Amount on Record |
| Prior Sale | Jun 15, 1999 · Amount on Record |
| Deed Document Number | 2023130453 |
| Prior Transfer Date | Feb 27, 2003 |
| Prior Transfer Doc | 0000135723 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 8, 2023 |
| Property Address | 3921 LIGHTHOUSE PL, DISCOVERY BAY, CA 94505-1101 |
| Document Number | 0000130453 |
| Map Reference | MB 331 PG 20 |
| Instrument Date | Dec 4, 2023 |
| Instrument | 2023-130453 |
| Transaction Type | Transfer |
| Record Updated | Dec 19, 2023 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 3 RABBIT LN, DARIEN, CT 06820-2822 |
| Document Number | 0000130454 |
|---|---|
| Date | Dec 8, 2023 |
| Instrument | 2023-130454 |
| Name | WALTER SIMPSON |
|---|---|
| Type | Seller |
| Type | Seller Carry-Back |
|---|---|
| Amount | Amount Recorded |
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 | $1,508,580 (+2%) Land $780,300 Building $728,280 | |
| 2025 | $17,988.00 (+95.2%) | $1,479,000 (+107.56%) Land $765,000 Building $714,000 |
| 2023 | $9,215.00 (+1.59%) Homeowner's exemption | $712,565 Land $226,014 Building $486,551 |
| 2022 | $9,071.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
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 | 7 in force |
| Nearby Flood Claims | 1 (1995) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jan 1995 · Severe Winter Storms, Flooding, Landslides, Mud Flows |
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 99.8% of the US · lower than 99.8% of California |
|---|---|
| Wildfire Likelihood | Under 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 320 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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