Contra Costa County property record for 270 Explorer Way, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,271 sqft · built 2004 |
| Lot Size | 0.262 acres (11,425 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $625,000 (Apr 2005) |
| Tax Bill | $11,640 (2025) |
| Deeds & Mortgages | Feb 2022 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 159-170-046-1 |
| Primary APN | 159-170-046-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,271 sqft Living Area |
| 1st Floor Area | 1,061 sqft |
| 2nd Floor Area | 1,210 sqft |
| Year Built | Built 2004 |
|---|---|
| Effective Year Built | Effective 2005 |
| Lot Area | 11,425 sqft (0.262 acres) |
| Garage Type | Attached |
| Garage Area | 486 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 270 EXPLORER WAY |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3604 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R7 |
| Legal Description | T8738 L11 |
| Legal Subdivision | SUBDIVISION 8738 |
| Legal Tract | 8738 |
| Legal Lot Number | 11 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 320004 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 270 EXPLORER WAY, MARTINEZ, CA 94553-3604 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 15, 2005 · Amount on Record |
| Deed Sale | Apr 15, 2005 · Amount on Record |
| Deed Document Number | 2005132596 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 270 EXPLORER WAY, MARTINEZ, CA 94553-3604 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | AMERICAN COAST TITLE |
| Name | Verified Name |
|---|---|
| Address | 270 EXPLORER WAY, MARTINEZ, CA 94553-3604 |
| Document Number | 0000019308 |
|---|---|
| Date | Feb 1, 2022 |
| Instrument | 2022-019308 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Mortgage Company |
| Address | FOOTHILL RANCH, CA 92610 |
| Type | VA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Feb 1, 2047 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | Martinez Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $901,287 (+2%) Land $405,200 Building $496,087 | |
| 2025 | $11,640.00 (+6.91%) Homeowner's exemption | $883,615 (+4.04%) Land $397,255 Building $486,360 |
| 2023 | $10,888.00 (+2.44%) Homeowner's exemption | $849,305 Land $381,830 Building $467,475 |
| 2022 | $10,629.00 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 4 in force |
| Nearby Flood Claims | 1 (2017) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, And Mudslides |
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 | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) 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 244 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 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Verizon.
5G (outdoors only) and 4G LTE
Search by:
By searching, you agree to: Terms • Privacy • Disclosures