Contra Costa County property record for 3003 Castro St, Martinez, CA 94553 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1 Baths |
| Year Built | Built 1956 |
| Square Footage | 931 sqft Living Area |
| Lot Size | 4,000 sqft (0.092 acres) |
| Garage | Attached, 276 sqft |
| Occupancy | Owner Occupied |
| Tax Bill | $4,008.00 (2025) |
| Primary APN | 370-243-008-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 931 sqft Living Area |
| 1st Floor | 931 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1956 |
| Lot Area | 4,000 sqft (0.092 acres) |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 276 sqft Garage |
| Street Address | 3003 CASTRO ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3219 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | CASTRO ST EXT LOT 5 BLK 182 |
| Legal Subdivision | CASTRO STREET EXT |
| Legal Block | 182 |
| Legal Lot Number | 5 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 3 |
| Census Block | 3007 |
| Census Tract | 318000 |
Source: Contra Costa County records · APN 370-243-008-7
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 | Company Name on File |
|---|---|
| Mailing Address | 3003 CASTRO ST, MARTINEZ, CA 94553-3219 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Aug 05, 2011 |
| Transfer Doc | 0000210308 |
| 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 | Martinez 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 | $272,065 (+2%) Land $121,958 Building $150,107 | |
| 2025 | $4,008.00 (+6.54%) Homeowner's exemption | $266,731 (+4.04%) Land $119,567 Building $147,164 |
| 2023 | $3,762.00 (+1.57%) Homeowner's exemption | $256,375 Land $114,925 Building $141,450 |
| 2022 | $3,704.00 |
3003 Castro St is in FEMA Zone AO, inside the Special Flood Hazard Area, with direct wildfire exposure (Moderate risk).
Source: FEMA National Flood Hazard Layer · Contra Costa County (06013C), updated October 12, 2026
| FEMA Flood Zone | Zone AO 1% annual chance, sheet flow 1–3 ft |
|---|---|
| Special Flood Hazard Area | Yes flood insurance required for federally backed mortgages |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | Moderate 47th percentile of exposed land nationally · 28th in California |
|---|---|
| Wildfire Likelihood | Moderate — about 1 in 1,299 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
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