Contra Costa County property record for 257 Benham Dr, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 3,360 sqft · built 1986 |
| Lot Size | 0.162 acres (7,076 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $899,000 (Oct 2019) |
| Tax Bill | $11,973 (2025) |
| Deeds & Mortgages | Sep 2021 Mortgage Oct 2019 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 164-461-009-7 |
| Primary APN | 164-461-009-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 3,360 sqft Living Area |
| Gross Area | 3,984 sqft |
| 1st Floor Area | 1,621 sqft |
| 2nd Floor Area | 1,739 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1998 |
| Exterior Material | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 7,076 sqft (0.162 acres) |
| Garage Type | Attached |
| Garage Area | 624 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | Deck Area |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 257 BENHAM DR |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-6043 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R75 |
| Legal Description | T05096 L0010 B |
| Legal Subdivision | SUBDIVISION 5096 |
| Legal Tract | 05096 |
| Legal Lot Number | 10 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 321103 |
Source: Contra Costa County records · APN 164-461-009-7
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 Individual Names on File |
|---|---|
| Mailing Address | 257 BENHAM DR, MARTINEZ, CA 94553-6043 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Sep 20, 2021 | Deed of Trust, Mortgage · Conventional Mortgage ALLY BANK |
| Oct 21, 2019 | Grant Deed, Transfer · Conventional Mortgage BBVA USA |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Oct 21, 2019 · Amount on Record |
| Deed Sale | Oct 21, 2019 · Amount on Record |
| Prior Sale | Aug 31, 2012 · Amount on Record |
| Deed Document Number | 2019179149 |
| Prior Transfer Date | Sep 21, 2016 |
| Prior Transfer Doc | 0000200962 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 257 BENHAM DR, MARTINEZ, CA 94553-6043 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Name | Verified Name |
|---|---|
| Address | 257 BENHAM DR, BRIONES, CA 94553-6043 |
| Document Number | 0000260551 |
|---|---|
| Date | Sep 20, 2021 |
| Instrument | 2021-260551 |
| Name | ALLY BANK |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28202 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 01, 2051 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 21, 2019 |
| Property Address | 257 BENHAM DR, MARTINEZ, CA 94553-6043 |
| Document Number | 0000179149 |
| Map Reference | MB 206 PG 44 |
| Instrument Date | Oct 17, 2019 |
| Instrument | 2019-179149 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | FIDELITY NATIONAL TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 257 BENHAM DR, MARTINEZ, CA 94553-6043 |
| Document Number | 0000179150 |
|---|---|
| Date | Oct 21, 2019 |
| Instrument | 2019-179150 |
| Name | BBVA USA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 01, 2049 |
| Document Number | 0000179151 |
|---|---|
| Date | Oct 21, 2019 |
| Instrument | 2019-179151 |
| Name | THE PERMANENTE MEDICAL GROUP INC |
|---|---|
| Type | Non-Lending Institution |
| Address | OAKLAND, CA 94612 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $1,002,846 (+2%) Land $501,981 Building $500,865 | |
| 2025 | $11,973.00 (+4.01%) | $983,184 (+4.04%) Land $492,139 Building $491,045 |
| 2023 | $11,511.00 (+0.84%) | $945,008 Land $473,030 Building $471,978 |
| 2022 | $11,415.00 |
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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