Contra Costa County property record for 6353 Greenridge Ct, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,026 sqft · built 1977 |
| Lot Size | 0.139 acres (6,042 sqft) |
| Owner | Company Name on File |
| Last Sale | $872 (Jan 1994) |
| Tax Bill | $4,540 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 164-391-018-3 |
| Primary APN | 164-391-018-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,026 sqft Living Area |
| Gross Area | 2,466 sqft |
| 1st Floor Area | 1,262 sqft |
| 2nd Floor Area | 764 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1977 |
|---|---|
| Effective Year Built | Effective 1978 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 6,042 sqft (0.139 acres) |
| Garage Type | Attached |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 6353 GREENRIDGE CT |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-6015 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | PUD |
| Legal Description | T04784 L0018 B |
| Legal Tract | 04784 |
| Legal Lot Number | 18 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 321103 |
Source: Contra Costa County records · APN 164-391-018-3
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 | Company Name on File |
|---|---|
| Mailing Address | 6353 GREENRIDGE CT, MARTINEZ, CA 94553-6015 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jan 18, 1994 · Amount on Record |
| Deed Sale | Jan 18, 1994 · Amount on Record |
| Prior Sale | Nov 03, 1993 · Amount on Record |
| Deed Document Number | 199413552 |
| Last Transfer Date | Jun 16, 2011 |
| Transfer Doc | 0000126926 |
| 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 | Mount Diablo 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 | $333,093 (+2%) Land $107,629 Building $225,464 | |
| 2025 | $4,540.00 (+4.42%) Homeowner's exemption | $326,563 (+4.04%) Land $105,519 Building $221,044 |
| 2023 | $4,348.00 (+0.86%) Homeowner's exemption | $313,883 Land $101,422 Building $212,461 |
| 2022 | $4,311.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133211032, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 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 | 8 in force |
| Nearby Flood Claims | 4 (1995–1998) |
| Claims Outside the SFHA | 1 of 4 |
| Most Recent Claim | Mar 1998 · Severe Winter Storms And Flooding |
| Wildfire Risk | High above 74% of the US · above 49% of California |
|---|---|
| Wildfire Likelihood | 0.4% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
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, availability as of December 31, 2025 · sampled at 260 locations within half a mile · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: AT&T, Verizon.
Source: EPA Safe Drinking Water Information System via ECHO, 2026 Q3 · EPA community water system boundaries v3.0, 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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