Contra Costa County property record for 342 Green St, Martinez, CA 94553
| Property Type | Apartments (5+ Units) |
|---|---|
| Details | 9,758 sqft · built 1929 |
| Lot Size | 0.23 acres (10,000 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $1,575,000 (Oct 2007) |
| Tax Bill | $35,874 (2025) |
| Deeds & Mortgages | Sep 2026 Mortgage Sep 2026 Sale + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 372-381-003-6 |
| Primary APN | 372-381-003-6 |
|---|---|
| Alternative APN |
|
| Total Rooms | 16 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 9,758 sqft Living Area |
| Gross Area | 7,550 sqft |
| 1st Floor Area | 7,550 sqft |
| Year Built | Built 1929 |
|---|---|
| Effective Year Built | Effective 1929 |
| Lot Area | 10,000 sqft (0.23 acres) |
| Street Address | 320 GREEN ST, 342 |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-2362 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Apartments (5+ Units) |
| Legal Description | ORIGINAL SURVEY LOTS 1 & 2 POR 7 & 8 BLK 169 |
| Legal Subdivision | TOWN MARTINEZ |
| Legal Block | 169 |
| Legal Lot Number | 1,2 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1012 |
| Census Tract | 318000 |
Source: Contra Costa County records, as of September 18, 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 Record |
|---|---|
| Mailing Address | PO BOX 1704, MARTINEZ, CA 94553-0704 |
| Owner Type | Individual |
| Vesting | Sole Owner |
| Date | Document |
|---|---|
| Sep 11, 2026 | Quit Claim Deed, Transfer · Conventional Mortgage BENEFICIAL STATE BANK |
| Sep 11, 2026 | Grant Deed, Transfer OLD REPUBLIC TITLE |
| May 31, 2019 | Grant Deed, Transfer · Commercial Mortgage SUMMIT STATE BANK |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 10, 2007 · Amount on Record |
| Deed Sale | Oct 10, 2007 · Amount on Record |
| Prior Sale | Mar 31, 2000 · Amount on Record |
| Deed Document Number | 2007282719 |
| Last Transfer Date | Sep 3, 2026 |
| Transfer Doc | 0000096190 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 11, 2026 |
| Property Address | 320 GREEN ST, 342, MARTINEZ, CA 94553-2362 |
| Document Number | 0000096190 |
| Instrument Date | Sep 3, 2026 |
| Instrument | 202696190 |
| Transaction Type | Transfer |
| Record Updated | Sep 17, 2026 |
| Title Company | OLD REPUBLIC TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Sole Owner |
| Document Number | 0000096192, |
|---|---|
| Date | Sep 11, 2026 |
| Instrument | 202696192 |
| Name | BENEFICIAL STATE BANK |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Initial Type | Adjustable Rate |
| Adjustable | Adjustable Rate Rider |
| Max Rate | -1% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 11, 2026 |
| Property Address | 320 GREEN ST, 342, MARTINEZ, CA 94553-2362 |
| Document Number | 0000096191 |
| Instrument Date | Sep 2, 2026 |
| Instrument | 202696191 |
| Transaction Type | Transfer |
| Record Updated | Sep 17, 2026 |
| Title Company | OLD REPUBLIC TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Sole Owner |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 31, 2019 |
| Property Address | 342 GREEN ST, MARTINEZ, CA 94553-2362 |
| Document Number | 0000080156 |
| Instrument Date | May 23, 2019 |
| Instrument | 2019-080156 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1727 CASTRO ST, MARTINEZ, CA 94553-2528 |
| Document Number | 0000080157 |
|---|---|
| Date | May 31, 2019 |
| Instrument | 2019-080157 |
| Name | SUMMIT STATE BANK |
|---|---|
| Type | Bank |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
| Document Number | 0000080158 |
|---|---|
| Date | May 31, 2019 |
| Instrument | 2019-080158 |
| Name | SUMMIT STATE BANK |
|---|---|
| Type | Bank |
| Address | SANTA ROSA, CA 95406 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
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 | $2,110,154 (+2%) Land $703,382 Building $1,406,772 | |
| 2025 | $35,874.00 (-35.69%) | $2,068,780 (-46.4%) Land $689,591 Building $1,379,189 |
| 2023 | $55,787.00 (+0.47%) | $3,859,925 Land $1,286,641 Building $2,573,284 |
| 2022 | $55,528.00 |
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 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 23 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 23 in force |
| Nearby Flood Claims | 12 (1980–2022) |
| Claims Outside the SFHA | 3 of 12 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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 | Moderate above 46% of the US · lower than 72% of California |
|---|---|
| Wildfire Likelihood | 0.08% 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 371 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Astound Broadband Fiber · Cable in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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