Contra Costa County property record for 438 Diablo Ct, Martinez, CA 94553 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2.5 Baths |
| Year Built | Built 1980 |
| Square Footage | 1,550 sqft Living Area |
| Lot Size | 7,700 sqft (0.177 acres) |
| Garage | Attached, 460 sqft |
| Last Sale | $745,000 (2019) |
| Tax Bill | $10,394.00 (2025) |
| Primary APN | 162-331-007-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,550 sqft Living Area |
| 1st Floor | 1,550 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1980 |
| Lot Area | 7,700 sqft (0.177 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 460 sqft Garage |
| Heating System | Central Heating |
|---|
| Street Address | 438 DIABLO CT |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-4846 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | TRACT 3113 LOT 48 EX POR MR |
| Legal Subdivision | SUBDIVISION 3113 |
| Legal Tract | 3113 |
| Legal Lot Number | 48 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 3 |
| Census Block | 3020 |
| Census Tract | 321101 |
Source: Contra Costa County records · APN 162-331-007-3
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 | 2 Company Names on File |
|---|---|
| Mailing Address | PO BOX 1234, ALAMO, CA 94507-7234 |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Date | Document |
|---|---|
| Feb 03, 2017 | Deed of Trust, Mortgage · Line of Credit WELLS FARGO BANK NA |
| Oct 02, 2019 | Grant Deed, Transfer PLACER TITLE COMPANY, PLACER TITLE CO. |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Oct 02, 2019 · Amount on Record |
| Deed Sale | Oct 02, 2019 · Amount on Record |
| Prior Sale | Jun 14, 2012 · Amount on Record |
| Deed Doc Number | 2019165682 |
| Prior Transfer Date | Jun 06, 2006 |
| Prior Transfer Doc | 0000416104 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 438 DIABLO CT, MARTINEZ, CA 94553-4846 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | AMERICAN TITLE INC |
| Name | Verified Name |
|---|
| Document Number | 0000022521 |
|---|---|
| Date | Feb 03, 2017 |
| Instrument | 2017-022521 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Feb 26, 2047 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 02, 2019 |
| Property Address | 438 DIABLO CT, MARTINEZ, CA 94553-4846 |
| Document Number | 0000165682 |
| Instrument Date | Sep 23, 2019 |
| Instrument | 165682 |
| Transaction Type | Transfer |
| Record Updated | Oct 16, 2019 |
| Title Company | PLACER TITLE COMPANY, PLACER TITLE CO. |
| Amount | Amount Recorded |
|---|---|
| Tax | $819.50 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | PO BOX 1234 ALAMO CA 945077234, ALAMO, CA 94507-7234 |
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 | $836,633 (+2%) Land $468,515 Building $368,118 | |
| 2025 | $10,394.00 (+4.51%) | $820,229 (+4.04%) Land $459,329 Building $360,900 |
| 2023 | $9,945.00 (+1.51%) | $788,381 Land $441,494 Building $346,887 |
| 2022 | $9,797.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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