Contra Costa County property record for 623 Jones St, Martinez, CA 94553
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 6 bd · 3 ba · 2,219 sqft · built 1927 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $290,500 (Jul 2013) |
| Tax Bill | $7,189 (2025) |
| Deeds & Mortgages | Nov 2022 Mortgage |
| Flood Zone | Zone AO (high risk) |
| APN | 372-335-004-1 |
| Primary APN | 372-335-004-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 15 Rooms |
| Stories | 1 Story |
| Building Area | 2,219 sqft Living Area |
| Gross Area | 1,296 sqft |
| 1st Floor Area | 1,296 sqft |
| Basement Area | 483 sqft |
| Year Built | Built 1927 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Multi-Family |
| Lot Area | 5,000 sqft (0.115 acres) |
| Garage Area | 230 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 623 JONES ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-2451 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Local Zoning Code | R3 |
| Legal Description | ORIGINAL SURVEY POR 7&8 49 |
| Legal Subdivision | MARTINEZ |
| Legal Block | 49 |
| Legal Lot Number | 7,8 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 317000 |
623 Jones St, a residential property, is held in a trust since July 2013.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 623 JONES ST, MARTINEZ, CA 94553-2451 |
| Owner Type | Company |
| Vesting | Trust |
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 | Jul 5, 2013 · Amount on File |
| Deed Sale | Jul 5, 2013 · Amount on File |
| Prior Sale | Aug 5, 2011 · Amount on File |
| Deed Document Number | 2013170195 |
| Prior Transfer Date | Mar 30, 1994 |
| Prior Transfer Doc | 0000091214 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 30, 2022 |
| Property Address | 623 JONES ST, MARTINEZ, CA 94553-2451 |
| Document Number | 0000179314 |
| Instrument Date | Nov 26, 2022 |
| Instrument | 2022-179314 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Title Company | PREMIUM TITLE OF CA INC |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 4155 AREZZO POINTE CT, 4155, SAN JOSE, CA 95148-4364 |
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 4155 AREZZO POINTE CT, SAN JOSE, CA 95148-4364 |
| Document Number | 0000179315 |
|---|---|
| Date | Nov 30, 2022 |
| Instrument | 2022-179315 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.8% |
| Type Change Date | Dec 1, 2029 |
| Change Frequency | Monthly |
| Min Rate At Change | 2.95% |
| Index | 1-Year T-Bill |
| Max Rate | 10.9% |
The 2025 property tax bill for 623 Jones St was $7,189.
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 | $425,370 (+2%) Land $312,590 Building $112,780 | |
| 2025 | $7,189.00 | $417,030 Land $306,461 Building $110,569 |
| 2023 | $6,882.00 (-0.23%) | $400,837 Land $294,561 Building $106,276 |
| 2022 | $6,898.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 623 Jones St in Zone AO, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AO high risk · sheet flow 1–3 ft |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 70 policies |
| Nearby Flood Policies | 70 in force |
| Nearby Flood Claims | 51 (1980–2018) |
| Claims Outside the SFHA | 1 of 51 |
| Most Recent Claim | Sep 2018 |
| 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.
Wildfire risk around 623 Jones St is moderate, ranking above 46% of the US, with a 0.09% annual chance of wildfire.
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 | 0.09% annual chance |
| Exposure | Direct burnable vegetation |
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 853 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| 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 |
May also be available: Unwired.
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