Contra Costa County property record for 540 Wano St, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,626 sqft · built 1929 |
| Lot Size | 0.165 acres (7,200 sqft) |
| Owner | Individual Name on File |
| Last Sale | $500,000 (Apr 2016) |
| Tax Bill | $7,916 (2025) |
| Flood Zone | Zone AO (high risk) |
| APN | 372-203-005-7 |
| Primary APN | 372-203-005-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,626 sqft Living Area |
| 1st Floor Area | 1,131 sqft |
| 2nd Floor Area | 495 sqft |
| Year Built | Built 1929 |
|---|---|
| Effective Year Built | Effective 1955 |
| Lot Area | 7,200 sqft (0.165 acres) |
| Garage Type | Attached |
| Garage Area | 390 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Central |
|---|
| Street Address | 540 WANO ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3237 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | SUBN OF BLKS 90 & 91 LOT 17 |
| Legal Subdivision | MARTINEZ |
| Legal Block | 90,91 |
| Legal Lot Number | 17 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 318000 |
540 Wano St is owned and occupied by an individual who bought it in April 2016.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 540 WANO ST, MARTINEZ, CA 94553-3237 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Sole Owner |
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 | Name on Deed |
|---|---|
| Last Sale | Apr 22, 2016 · Amount on File |
| Deed Sale | Apr 22, 2016 · Amount on File |
| Prior Sale | Dec 15, 2010 · Amount on File |
| Deed Document Number | 201674363 |
| Prior Transfer Date | Apr 19, 2016 |
| Prior Transfer Doc | 0000074364 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 540 Wano St was $7,916.
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 | $603,728 (+2%) Land $410,536 Building $193,192 | |
| 2025 | $7,916.00 | $591,891 Land $402,487 Building $189,404 |
| 2023 | $7,436.00 (+1.65%) | $568,909 Land $386,859 Building $182,050 |
| 2022 | $7,315.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 540 Wano 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 109 policies |
| Nearby Flood Policies | 109 in force |
| Nearby Flood Claims | 32 (1980–2019) |
| Claims Outside the SFHA | 3 of 32 |
| Most Recent Claim | Feb 2019 |
| 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 540 Wano St is moderate, ranking above 43% of the US, with a 0.08% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 43% of the US · lower than 74% of California |
|---|---|
| Wildfire Likelihood | 0.08% 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 358 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 Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Unwired.
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