Contra Costa County property record for 437 Diablo Way, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,286 sqft · built 1964 |
| Lot Size | 0.164 acres (7,150 sqft) |
| Owner | Individual Name on File |
| Last Sale | $380,000 (Sep 2002) |
| Tax Bill | $7,293 (2025) |
| Deeds & Mortgages | Jul 2026 Transfer Nov 2019 Line of Credit + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 162-323-017-2 |
| Primary APN | 162-323-017-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,286 sqft Living Area |
| Gross Area | 1,746 sqft |
| 1st Floor Area | 1,286 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 7,150 sqft (0.164 acres) |
| Lot Dimensions | 100 ft deep x 65 ft wide |
| Garage Type | Attached |
| Garage Area | 460 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 437 DIABLO WAY |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-4830 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R7 5 |
| Legal Description | TRACT 3113 LOT 28 LESS POR MR |
| Legal Subdivision | PLEASANT VIEW |
| Legal Tract | 3113 |
| Legal Lot Number | 28 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3017 |
| Census Tract | 321101 |
Source: Contra Costa County records, as of July 30, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 437 DIABLO WAY, MARTINEZ, CA 94553-4830 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Unmarried Woman |
| Date | Document |
|---|---|
| Jul 22, 2026 | Quit Claim Deed, Transfer FIRST AMERICAN TITLE |
| Nov 6, 2019 | Deed of Trust, Mortgage · Line of Credit CITY NATIONAL BANK |
| Feb 1, 2019 | Loan Modification, Mortgage · Conventional Mortgage AMERISAVE MTG |
| Oct 2, 2018 | Quit Claim Deed, Transfer FIRST AMERICAN TITLE |
| Dec 22, 2017 | Loan Modification, Mortgage · Line of Credit CITY NAT'L BK |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 16, 2002 · Amount on File |
| Deed Sale | Sep 16, 2002 · Amount on File |
| Deed Document Number | 2002327751 |
| Last Transfer Date | Sep 28, 2018 |
| Transfer Doc | 0000156504 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 22, 2026 |
| Property Address | 437 DIABLO WAY, MARTINEZ, CA 94553-4830 |
| Document Number | 0000076967 |
| Instrument Date | Jul 16, 2026 |
| Instrument | 202676967 |
| Transaction Type | Transfer |
| Record Updated | Aug 31, 2026 |
| Title Company | FIRST AMERICAN TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 437 DIABLO WAY, MARTINEZ, CA 94553-4830 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 437 DIABLO WAY, MARTINEZ, CA 94553-4830 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000197892 |
|---|---|
| Date | Nov 6, 2019 |
| Instrument | 2019-197892 |
| Name | CITY NATIONAL BANK |
|---|---|
| Type | Bank |
| Address | LOS ANGELES, CA 90071 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 437 DIABLO WAY, MARTINEZ, CA 94553-4830 |
| Document Number | 0000015292 |
| Instrument Date | Feb 1, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Feb 14, 2019 |
| Title Company | OTHER |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 437 DIABLO WAY MARTINEZ CA 945534830, MARTINEZ, CA 94553-4830 |
| Document Number | 0000015292 |
|---|---|
| Date | Feb 4, 2019 |
| Instrument | 15292 |
| Name | AMERISAVE MTG |
|---|---|
| Type | Mortgage Company |
| Address | FLINT, MI 48501-2026 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 276 Months |
| Due | Feb 3, 2042 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 3.35% |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 2, 2018 |
| Property Address | 437 DIABLO WAY, MARTINEZ, CA 94553-4830 |
| Document Number | 0000156504 |
| Instrument Date | Sep 28, 2018 |
| Instrument | 156504 |
| Transaction Type | Transfer |
| Record Updated | Oct 11, 2018 |
| Title Company | FIRST AMERICAN TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 437 DIABLO WAY MARTINEZ CA 945534830, MARTINEZ, CA 94553-4830 |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 437 DIABLO WAY, MARTINEZ, CA 94553-4830 |
| Document Number | 0000005766 |
| Instrument Date | Dec 22, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Jan 22, 2018 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Document Number | 0000005766 |
|---|---|
| Date | Jan 16, 2018 |
| Instrument | 5766 |
| Name | CITY NAT'L BK |
|---|---|
| Type | Bank |
| Address | EL SEGUNDO, CA 90245 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|
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 | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $561,349 (+2%) Land $302,835 Building $258,514 | |
| 2025 | $7,293.00 (+4.86%) Homeowner's exemption | $550,344 (+4.04%) Land $296,898 Building $253,446 |
| 2023 | $6,955.00 (+1.83%) Homeowner's exemption | $528,975 Land $285,370 Building $243,605 |
| 2022 | $6,830.00 |
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 |
| Nearby Flood Policies | 1 in force |
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 | Not rated no burnable land within 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 | 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 528 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 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
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