Contra Costa County property record for 231 F St, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 984 sqft · built 1941 |
| Lot Size | 0.103 acres (4,500 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $350,000 (Apr 2014) |
| Tax Bill | $5,997 (2025) |
| Deeds & Mortgages | Jan 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 370-210-012-8 |
| Primary APN | 370-210-012-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 984 sqft Living Area |
| 1st Floor Area | 984 sqft |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1967 |
| Lot Area | 4,500 sqft (0.103 acres) |
| Garage Type | Attached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|
| Street Address | 231 F ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3131 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | PONGRACE SUBN LOT 23 |
| Legal Subdivision | PONGRACE SUB |
| Legal Lot Number | 23 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2015 |
| Census Tract | 318000 |
231 F St is owned and occupied by two individuals who acquired it in March 2016.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 231 F ST, MARTINEZ, CA 94553-3131 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 23, 2014 · Amount on File |
| Deed Sale | Apr 23, 2014 · Amount on File |
| Prior Sale | Sep 29, 2011 · Amount on File |
| Deed Document Number | 201462787 |
| Last Transfer Date | Mar 7, 2016 |
| Transfer Doc | 0000042586 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 231 F ST, MARTINEZ, CA 94553-3131 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TTL CO FREMONT |
| Name | Verified Name |
|---|---|
| Address | 231 F ST, MARTINEZ, CA 94553-3131 |
| Document Number | 0000008556 |
|---|---|
| Date | Jan 11, 2021 |
| Instrument | 2021-008556 |
| Name | FINANCE OF AMERICA MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | HORSHAM, PA 19044 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 241 Months |
| Due | Feb 1, 2041 |
The 2025 property tax bill for 231 F St was $5,997.
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 | $437,622 (+2%) Land $331,845 Building $105,777 | |
| 2025 | $5,997.00 | $429,042 Land $325,339 Building $103,703 |
| 2023 | $5,633.00 (+1.62%) | $412,383 Land $312,706 Building $99,677 |
| 2022 | $5,543.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 231 F St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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.
Wildfire risk around 231 F St is moderate, ranking above 59% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 59% of the US · lower than 64% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect within ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
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 358 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Fiber · Cable in parts of the area | 1,500 / 1,500 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Unwired.
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