Contra Costa County property record for 318 Haven St, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,219 sqft · built 1916 |
| Lot Size | 0.083 acres (3,600 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $196,000 (Oct 2009) |
| Tax Bill | $3,848 (2025) |
| Deeds & Mortgages | Dec 2025 Transfer Jun 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 372-301-002-5 |
| Primary APN | 372-301-002-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,219 sqft Living Area |
| 1st Floor Area | 1,219 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1916 |
|---|---|
| Effective Year Built | Effective 1940 |
| Lot Area | 3,600 sqft (0.083 acres) |
| Lot Dimensions | 100 ft deep x 35 ft wide |
| Garage Type | Attached |
| Garage Area | 253 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Floor/Wall Furnace |
|---|
| Street Address | 318 HAVEN ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-2459 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | ORIGINAL SURVEY POR 3 59 |
| Legal Subdivision | TOWN MARTINEZ |
| Legal Block | 59 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 318000 |
318 Haven St is owner-occupied and held in a trust since October 2009.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 318 HAVEN ST, MARTINEZ, CA 94553-2459 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Dec 5, 2025 | Intrafamily Transfer, Transfer |
| Jun 17, 2020 | Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 8, 2009 · Amount on File |
| Deed Sale | Oct 8, 2009 · Amount on File |
| Prior Sale | May 5, 2009 · Amount on File |
| Deed Document Number | 2009238052 |
| Prior Transfer Date | Aug 11, 2004 |
| Prior Transfer Doc | 0000326985 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 5, 2025 |
| Property Address | 318 HAVEN ST, MARTINEZ, CA 94553-2459 |
| Document Number | 0000136524 |
| Instrument Date | Sep 30, 2025 |
| Instrument | 2025- 136524 |
| Transaction Type | Transfer |
| Record Updated | Dec 18, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 318 HAVEN ST, MARTINEZ, CA 94553-2459 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 318 HAVEN ST, MARTINEZ, CA 94553-2459 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | CONSUMERS TITLE CO |
| Name | Verified Name |
|---|
| Document Number | 0000117033 |
|---|---|
| Date | Jun 17, 2020 |
| Instrument | 2020-117033 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | PONTIAC, MI 48341 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jul 1, 2050 |
The 2025 property tax bill for 318 Haven St was $3,848.
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 | $258,039 (+2%) Land $165,884 Building $92,155 | |
| 2025 | $3,848.00 Homeowner's exemption | $252,981 Land $162,632 Building $90,349 |
| 2023 | $3,612.00 (+1.57%) Homeowner's exemption | $243,160 Land $156,318 Building $86,842 |
| 2022 | $3,556.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 318 Haven 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 |
| Flood Insurance Cost | Premium on File 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.
Wildfire risk around 318 Haven St is moderate, ranking above 66% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 66% of the US · above 41% of California |
|---|---|
| Wildfire Likelihood | 0.3% 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 348 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 DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Unwired.
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