Contra Costa County property record for 511 Webster Dr, Martinez, CA 94553 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1973 |
| Square Footage | 1,895 sqft Living Area |
| Lot Size | 8,820 sqft (0.203 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $512,000 (2012) |
| Tax Bill | $7,946.00 (2025) |
| Primary APN | 164-295-007-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Building Area | 1,895 sqft Living Area |
| 1st Floor | 1,171 sqft 1st Floor |
| 2nd Floor | 724 sqft 2nd Floor |
| Stories | 2 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1973 |
| Lot Area | 8,820 sqft (0.203 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 502 sqft Garage |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Street Address | 511 WEBSTER DR |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-6033 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | TRACT 3469 LOT 63 & POR 62 EX MR |
| Legal Subdivision | DEER RUN UNIT 14 B |
| Legal Tract | 3469 |
| Legal Lot Number | 63 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 1 |
| Census Block | 1008 |
| Census Tract | 321103 |
Source: Contra Costa County records · APN 164-295-007-3
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 | 511 WEBSTER DR, MARTINEZ, CA 94553-6033 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Community Property |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 17, 2012 · Amount on Record |
| Deed Sale | Aug 17, 2012 · Amount on Record |
| Prior Sale | Jul 29, 2009 · Amount on Record |
| Deed Doc Number | 2012198712 |
| 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 | $643,083 (+2%) Land $401,929 Building $241,154 | |
| 2025 | $7,946.00 (+4.16%) Homeowner's exemption | $630,475 (+4.04%) Land $394,049 Building $236,426 |
| 2023 | $7,629.00 (+0.85%) Homeowner's exemption | $605,996 Land $378,749 Building $227,247 |
| 2022 | $7,565.00 |
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