Contra Costa County property record for 584 Ross Cir, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,316 sqft · built 2000 |
| Lot Size | 0.101 acres (4,386 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $351,500 (Feb 2001) |
| Tax Bill | $7,180 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 380-180-073-5 |
| Primary APN | 380-180-073-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,316 sqft Living Area |
| 1st Floor Area | 1,158 sqft |
| 2nd Floor Area | 1,158 sqft |
| Year Built | Built 2000 |
|---|---|
| Effective Year Built | Effective 2001 |
| Lot Area | 4,386 sqft (0.101 acres) |
| Garage Type | Attached |
| Garage Area | 379 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 584 ROSS CIR |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-2249 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | P1 |
| Legal Description | T7503 L15 |
| Legal Tract | 7503 |
| Legal Lot Number | 15 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 320001 |
584 Ross Cir is owned and occupied by two individuals who bought it in February 2001.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 584 ROSS CIR, MARTINEZ, CA 94553-2249 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | Feb 23, 2001 · Amount on File |
| Deed Sale | Feb 23, 2001 · Amount on File |
| Deed Document Number | 200141837 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 584 Ross Cir was $7,180 with a homeowner's exemption.
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 | $539,763 (+2%) Land $192,110 Building $347,653 | |
| 2025 | $7,180.00 Homeowner's exemption | $529,181 Land $188,344 Building $340,837 |
| 2023 | $6,696.00 (+2.72%) Homeowner's exemption | $508,633 Land $181,031 Building $327,602 |
| 2022 | $6,519.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 584 Ross Cir in Zone X, an area of minimal flood risk, though there have been 11 flood claims nearby since 1986.
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 |
| Flood Insurance Cost | Premium on File median of 22 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 22 in force |
| Nearby Flood Claims | 11 (1986–2022) |
| Claims Outside the SFHA | 2 of 11 |
| 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 584 Ross Cir is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.8% of the US · lower than 99.8% 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 497 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband.
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