Contra Costa County property record for 3660 Serrano St, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 2,070 sqft · built 1942 |
| Lot Size | 0.192 acres (8,370 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $495,000 (Sep 2004) |
| Tax Bill | $8,983 (2025) |
| Deeds & Mortgages | Aug 2018 Mortgage Sep 2018 Line of Credit + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 370-094-033-5 |
| Primary APN | 370-094-033-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,070 sqft Living Area |
| 1st Floor Area | 1,195 sqft |
| Basement Area | 875 sqft |
| Year Built | Built 1942 |
|---|---|
| Effective Year Built | Effective 1944 |
| Lot Area | 8,370 sqft (0.192 acres) |
| Garage Type | Attached |
| Garage Area | 320 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Central |
|---|
| Street Address | 3660 SERRANO ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3751 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | ALTA LOMA LOT 44 & POR 45 |
| Legal Subdivision | ALTA LOMA |
| Legal Lot Number | 44 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2016 |
| Census Tract | 318000 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 3660 SERRANO ST, MARTINEZ, CA 94553-3751 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Date | Document |
|---|---|
| Aug 8, 2018 | Deed of Trust, Mortgage · Conventional Mortgage FAIRWAY INDEPENDENT MORTGAGE CORP |
| Sep 28, 2018 | Deed of Trust, Mortgage · Line of Credit US BANK NA |
| Nov 7, 2019 | Deed of Trust, Mortgage · Conventional Mortgage FAIRWAY INDEPENDENT MORTGAGE CORP |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 23, 2004 · Amount on Record |
| Deed Sale | Sep 23, 2004 · Amount on Record |
| Deed Document Number | 2004366961 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3660 SERRANO ST, MARTINEZ, CA 94553-3751 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRST AMERICAN TITLE SANTA A |
| Name | Verified Name |
|---|
| Document Number | 0000126371 |
|---|---|
| Date | Aug 8, 2018 |
| Instrument | 2018-126371 |
| Name | FAIRWAY INDEPENDENT MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Address | CARROLLTON, TX 75007 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 239 Months |
| Due | Jul 1, 2038 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3660 SERRANO ST, MARTINEZ, CA 94553-3751 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | SOLIDIFI US INC |
| Name | Verified Name |
|---|
| Document Number | 0000154939 |
|---|---|
| Date | Sep 28, 2018 |
| Instrument | 2018-154939 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Address | CINCINNATI, OH 45202 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Sep 7, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3660 SERRANO ST, MARTINEZ, CA 94553-3751 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FATCO |
| Name | Verified Name |
|---|
| Document Number | 0000198719 |
|---|---|
| Date | Nov 7, 2019 |
| Instrument | 2019-198719 |
| Name | FAIRWAY INDEPENDENT MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Address | CARROLLTON, TX 75007 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 240 Months |
| Due | Nov 1, 2039 |
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 | Martinez Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $703,765 (+2%) Land $383,875 Building $319,890 | |
| 2025 | $8,983.00 (+6.51%) Homeowner's exemption | $689,967 (+4.04%) Land $376,349 Building $313,618 |
| 2023 | $8,434.00 (+1.68%) Homeowner's exemption | $663,177 Land $361,736 Building $301,441 |
| 2022 | $8,295.00 |
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 | 3 in force |
| Nearby Flood Claims | 5 (1982–2017) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, And Mudslides |
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 | High above 74% of the US · above 49% of California |
|---|---|
| Wildfire Likelihood | 0.4% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 335 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 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
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