Contra Costa County property record for 427 H St, Martinez, CA 94553 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 1 Baths |
| Year Built | Built 1926 |
| Square Footage | 928 sqft Living Area |
| Lot Size | 4,000 sqft (0.092 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $145,000 (2011) |
| Tax Bill | $3,017.00 (2025) |
Source: Contra Costa County records · APN 370-082-011-5
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 | Individual Name on File |
|---|---|
| Mailing Address | 427 H ST, MARTINEZ, CA 94553-3710 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 23, 2011 · Amount on Record |
| Deed Sale | Dec 23, 2011 · Amount on Record |
| Prior Sale | Sep 30, 2008 · Amount on Record |
| Deed Doc Number | 2011280672 |
| Last Transfer Date | May 13, 2013 |
| Transfer Doc | 0000127778 |
| 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 | $185,755 (+2%) Land $153,734 Building $32,021 | |
| 2025 | $3,017.00 (+6.57%) Homeowner's exemption | $182,114 (+4.04%) Land $150,720 Building $31,394 |
| 2023 | $2,831.00 (+1.51%) Homeowner's exemption | $175,044 Land $144,868 Building $30,176 |
| 2022 | $2,789.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026
| FEMA Flood Zone | Zone AO sheet flow 1–3 ft |
|---|---|
| Flood Hazard | High |
| 100-Year Floodplain | Yes 1% annual chance |
| Special Flood Hazard Area | Yes |
| Flood Insurance Requirement | Required (federally backed mortgages) |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Wildfire Risk | Moderate above 60% of the US · above 36% of California |
|---|---|
| Wildfire Likelihood | About 1 in 625 per year |
| Exposure | Indirect within ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
| Primary APN | 370-082-011-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 928 sqft Living Area |
| 1st Floor | 928 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1926 |
|---|---|
| Effective Year Built | Effective 1926 |
| Lot Area | 4,000 sqft (0.092 acres) |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 319 sqft Garage |
| Street Address | 427 H ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3710 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | MUIR MANOR LOT 36 |
| Legal Subdivision | MUIR MANOR |
| Legal Lot Number | 36 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 3 |
| Census Block | 3012 |
| Census Tract | 318000 |
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