Contra Costa County property record for 15 Main St, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,155 sqft · built 1977 |
| Lot Size | 0.278 acres (12,096 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $469,000 (Aug 2004) |
| Tax Bill | $8,642 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 372-080-016-2 |
| Primary APN | 372-080-016-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,155 sqft Living Area |
| 1st Floor Area | 1,708 sqft |
| Basement Area | 447 sqft |
| Year Built | Built 1977 |
|---|---|
| Effective Year Built | Effective 1979 |
| Lot Area | 12,096 sqft (0.278 acres) |
| Garage Type | Attached |
| Garage Area | 520 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 15 MAIN ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-1518 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | PCL MAP 52 PG 7 PCL A |
| Legal Subdivision | PM 52 7 |
| Legal Tract | 52PM7 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 318000 |
Source: Contra Costa County records · APN 372-080-016-2
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 | 2 Company Names on File |
|---|---|
| Mailing Address | PO BOX 7560, TAHOE CITY, CA 96145-7560 |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 12, 2004 · Amount on Record |
| Deed Sale | Aug 12, 2004 · Amount on Record |
| Deed Document Number | 2004311130 |
| Prior Transfer Date | Jul 17, 2003 |
| Prior Transfer Doc | 0000338049 |
| Record Updated | Sep 20, 2026 |
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 | $666,801 (+2%) Land $469,183 Building $197,618 | |
| 2025 | $8,642.00 (+6.47%) | $653,728 (+4.04%) Land $459,984 Building $193,744 |
| 2023 | $8,117.00 (+1.65%) | $628,345 Land $442,123 Building $186,222 |
| 2022 | $7,985.00 |
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 minimal risk |
|---|---|
| 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 |
| Wildfire Risk | Moderate above 68% of the US · above 43% of California |
|---|---|
| Wildfire Likelihood | 0.2% 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) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Radiate Holdings Fiber · Cable in parts of the area | 1,500 / 1,500 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Unwired.
Based on FCC filings for 348 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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