Contra Costa County property record for 557 Webster Dr, Martinez, CA 94553 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2.5 Baths |
| Year Built | Built 1976 |
| Square Footage | 1,807 sqft Living Area |
| Lot Size | 13,100 sqft (0.301 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $550,000 (2003) |
| Tax Bill | $9,977.00 (2025) |
| Primary APN | 164-294-008-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 9 Rooms |
| Building Area | 1,807 sqft Living Area |
| 1st Floor | 1,807 sqft 1st Floor |
| Stories | 1 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1976 |
| Exterior Material | Stucco Exterior |
| Roof Material | Wood Shingle Roof |
| Lot Area | 13,100 sqft (0.301 acres) |
| Parking Spaces | 3 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 808 sqft Garage |
| Heating System | Forced Air with Air Conditioning Heating |
|---|---|
| Heating Fuel | Gas Heating Fuel |
| Sewage | Municipal Sewage |
| Water Source | Commercial Water Source |
| Street Address | 557 WEBSTER DR |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-6041 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | TRACT 3469 LOT 34 EX MR |
| Legal Subdivision | DEER RUN UNIT 14 B |
| Legal Tract | 3469 |
| Legal Lot Number | 34 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 2 |
| Census Block | 2011 |
| Census Tract | 321103 |
Source: Contra Costa County records · APN 164-294-008-2
Assessment roll updated July 14, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 557 WEBSTER DR, MARTINEZ, CA 94553-6041 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Apr 24, 2003 · Amount on Record |
| Deed Sale | Apr 24, 2003 · Amount on Record |
| Deed Doc Number | 2003187770 |
| Last Transfer Date | Jul 13, 2011 |
| Transfer Doc | 0000157511 |
| Record Refreshed | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $834,021 (+2%) Land $582,639 Building $251,382 | |
| 2025 | $9,977.00 (+4.11%) Homeowner's exemption | $817,668 (+4.04%) Land $571,215 Building $246,453 |
| 2023 | $9,583.00 (+0.85%) Homeowner's exemption | $785,919 Land $549,035 Building $236,884 |
| 2022 | $9,502.00 |
557 Webster Dr is in FEMA Zone X, outside the Special Flood Hazard Area, with indirect wildfire exposure (Moderate risk).
Source: FEMA National Flood Hazard Layer · Contra Costa County (06013C), updated October 12, 2026
| FEMA Flood Zone | Zone X minimal flood hazard · outside the 0.2% annual chance floodplain |
|---|---|
| Special Flood Hazard Area | No |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | Moderate 54th percentile of exposed land nationally · 32nd in California |
|---|---|
| Wildfire Likelihood | Moderate — about 1 in 775 per year |
| Exposure | Indirect within ember reach of burnable land · adjoins burnable vegetation |
Values are read at the parcel center point; lenders make the official flood determination.
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