Contra Costa County property record for 245 H St, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 1 ba · 2,515 sqft · built 1941 |
| Lot Size | 0.151 acres (6,570 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $1,845 (2025) |
| Deeds & Mortgages | Feb 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 370-092-003 |
| Primary APN | 370-092-003 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 2,515 sqft Living Area |
| 1st Floor Area | 1,417 sqft |
| Basement Area | 1,098 sqft |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1945 |
| Lot Area | 6,570 sqft (0.151 acres) |
| Lot Dimensions | 90 ft deep x 73 ft wide |
| Garage Type | Attached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 245 H ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3708 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | ALTA LOMA POR LOT 19 & 20 |
| Legal Subdivision | ALTA LOMA |
| Legal Lot Number | 19,20 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2018 |
| Census Tract | 318000 |
Source: Contra Costa County assessment roll, 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 | Individual Name on File |
|---|---|
| Mailing Address | 245 H ST, MARTINEZ, CA 94553-3708 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Feb 8, 2021 |
| Transfer Doc | 0000043579 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Feb 11, 2021 |
| Property Address | 245 H ST, MARTINEZ, CA 94553-3708 |
| Document Number | 0000043579 |
| Map Reference | MB 22 PG 660 |
| Instrument Date | Feb 8, 2021 |
| Instrument | 2021-043579 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 245 H ST, MARTINEZ, CA 94553-3708 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez City |
| Unified School District | Martinez Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $76,083 (+2%) Land $24,706 Building $51,377 | |
| 2025 | $1,845.00 (+6.34%) | $74,592 (+4.04%) Land $24,222 Building $50,370 |
| 2023 | $1,735.00 (+1.28%) | $71,698 Land $23,283 Building $48,415 |
| 2022 | $1,713.00 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AO, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 5 (1982–2017) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, And Mudslides |
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 74% of the US · above 49% of California |
|---|---|
| Wildfire Likelihood | 0.4% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF MARTINEZ serves 31,015 people · EPA ID CA0710006 |
|---|---|
| Water Source | Purchased surface water from CONTRA COSTA WATER DISTRICT |
| Last State Inspection | Oct 2025 |
| Lead | Under 1 ppb (2023–2025) 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.
Source: FCC Broadband Data Collection, based on 335 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Radiate Holdings Fiber · Cable in parts of the area | 1,500 / 1,500 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
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