Contra Costa County property record for 334 Main St, Martinez, CA 94553
| Property Type | Quadplex |
|---|---|
| Details | 2,530 sqft · built 2003 |
| Lot Size | 0.114 acres (4,965 sqft) |
| Owner | Company Name on File |
| Last Sale | $1,500,000 (Apr 2020) |
| Tax Bill | $22,275 (2025) |
| Deeds & Mortgages | Jun 2020 Mortgage Apr 2020 Transfer + 1 more |
| Flood Zone | Zone X (moderate risk) |
| APN | 373-224-009-2 |
| Primary APN | 373-224-009-2 |
|---|---|
| Alternative APN |
|
| Total Rooms | 4 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 2,530 sqft Living Area |
| 1st Floor Area | 2,530 sqft |
| Year Built | Built 2003 |
|---|---|
| Effective Year Built | Effective 2004 |
| Architectural Style | Quadruplex |
| Lot Area | 4,965 sqft (0.114 acres) |
| Parking Spaces | 4 Parking Spaces |
| Street Address | 334 MAIN ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-1581 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Legal Description | ORIGINAL SURVEY POR LOT 1 BLK 23 |
| Legal Subdivision | MARTINEZ |
| Legal Block | 23 |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1049 |
| Census Tract | 316000 |
Source: Contra Costa County records · APN 373-224-009-2
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 | 33278 CENTRAL AVE, UNION CITY, CA 94587-2051 |
| Owner Type | Company |
| Date | Document |
|---|---|
| Jun 03, 2020 | Deed of Trust, Mortgage · Conventional with PMI BEACON BUSN BK NA |
| Apr 02, 2020 | Affidavit of Death, Transfer PLACER TITLE COMPANY, PLACER TITLE CO. |
| Apr 02, 2020 | Grant Deed, Transfer PLACER TITLE COMPANY, PLACER TITLE CO. |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Apr 02, 2020 · Amount on Record |
| Deed Sale | Apr 02, 2020 · Amount on Record |
| Prior Sale | May 30, 2002 · Amount on Record |
| Deed Document Number | 202063906 |
| Prior Transfer Date | Apr 05, 2013 |
| Prior Transfer Doc | 0000089136 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 334 MAIN ST, MARTINEZ, CA 94553-1581 |
| Document Number | 0000113789 |
| Instrument Date | Jun 03, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Jun 19, 2020 |
| Title Company | NORTH AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 334 MAIN ST MARTINEZ CA 945531581, MARTINEZ, CA 94553-1581 |
| Document Number | 0000113789 |
|---|---|
| Date | Jun 12, 2020 |
| Instrument | 113789 |
| Name | BEACON BUSN BK NA |
|---|---|
| Address | SAN FRANCISCO, CA 94108 |
| Type | Conventional with PMI |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Affidavit of Death |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 02, 2020 |
| Property Address | 334 MAIN ST, MARTINEZ, CA 94553-1581 |
| Document Number | 0000063905 |
| Instrument Date | Mar 31, 2020 |
| Instrument | 63905 |
| Transaction Type | Transfer |
| Record Updated | May 14, 2020 |
| Title Company | PLACER TITLE COMPANY, PLACER TITLE CO. |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 3001 BRIDGEWAY #431 SAUSALITO CA 949651408, 431, SAUSALITO, CA 94965-1408 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 02, 2020 |
| Property Address | 334 MAIN ST, MARTINEZ, CA 94553-1581 |
| Document Number | 0000063906 |
| Instrument Date | Mar 30, 2020 |
| Instrument | 63906 |
| Transaction Type | Transfer |
| Record Updated | May 14, 2020 |
| Title Company | PLACER TITLE COMPANY, PLACER TITLE CO. |
| Amount | Amount Recorded |
|---|---|
| Tax | $1,650.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 33278 CENTRAL AVE UNION CITY CA 945872051, UNION CITY, CA 94587-2051 |
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 | $1,673,274 (+2%) Land $836,637 Building $836,637 | |
| 2025 | $22,275.00 (+5.63%) | $1,640,466 (+4.04%) Land $820,233 Building $820,233 |
| 2023 | $21,088.00 (+0.89%) | $1,576,766 Land $788,383 Building $788,383 |
| 2022 | $20,901.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| 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 42 policies |
| Nearby Flood Policies | 42 in force |
| Nearby Flood Claims | 20 (1982–2017) |
| Claims Outside the SFHA | 4 of 20 |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, And Mudslides |
| Claims by Event |
|
| Wildfire Risk | Moderate above 58% of the US · lower than 65% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Radiate Holdings 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 USA Fixed Wireless | 100 / 20 |
Based on FCC filings for 371 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF MARTINEZ serves 31,015 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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