Contra Costa County property record for 51 Williams Dr, Moraga, CA 94556
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 3,433 sqft · built 1985 |
| Lot Size | 0.597 acres (26,000 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $9,172 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 256-400-001-2 |
| Primary APN | 256-400-001-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 13 Rooms |
| Stories | 2 Stories |
| Building Area | 3,433 sqft Living Area |
| 1st Floor Area | 2,505 sqft |
| 2nd Floor Area | 928 sqft |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1986 |
| Lot Area | 26,000 sqft (0.597 acres) |
| Garage Type | Attached |
| Garage Area | 647 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 51 WILLIAMS DR |
|---|---|
| City | MORAGA |
| State | CA |
| Zip | 94556-2363 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 6PDDT |
| Legal Description | T06024AL0012 B |
| Legal Tract | 6024 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 352101 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 51 WILLIAMS DR, MORAGA, CA 94556-2363 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Moraga Town |
| Secondary School District | Acalanes Union High School District (09 - 12) |
| Elementary School District | Moraga Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $680,442 (+2%) Land $264,049 Building $416,393 | |
| 2025 | $9,172.00 (+5.58%) Homeowner's exemption | $667,101 (+4.04%) Land $258,872 Building $408,229 |
| 2023 | $8,687.00 (+1.52%) Homeowner's exemption | $641,199 Land $248,821 Building $392,378 |
| 2022 | $8,557.00 |
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 4 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 | High above 75% of the US · above 51% of California |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Direct burnable vegetation |
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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 160 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
May also be available: AT&T, Etheric Networks, T-Mobile, Unwired, Verizon.
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