Contra Costa County property record for 104 Warren St, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,850 sqft · built 1963 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $185,000 (Jun 2000) |
| Tax Bill | $2,350 (2025) |
| Deeds & Mortgages | Jun 2023 Second Mortgage Nov 2020 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 372-171-020-4 |
| Primary APN | 372-171-020-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,850 sqft Living Area |
| 1st Floor Area | 1,257 sqft |
| Basement Area | 593 sqft |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1964 |
| Lot Area | 5,000 sqft (0.115 acres) |
| Garage Type | Attached |
| Garage Area | 446 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 104 WARREN ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-2431 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | SUNNYSIDE TERR EXT 13 32 |
| Legal Subdivision | SUNNYSIDE TERRACE EXT |
| Legal Block | 32 |
| Legal Lot Number | 13 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1022 |
| Census Tract | 318000 |
104 Warren St is owned and occupied by two individuals who bought it in June 2000.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 104 WARREN ST, MARTINEZ, CA 94553-2431 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jun 22, 2023 | Deed of Trust, Mortgage · Stand-Alone Second Mortgage ROCKET MORTGAGE LLC |
| Nov 23, 2020 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC |
| Oct 24, 2019 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 16, 2000 · Amount on File |
| Deed Sale | Jun 16, 2000 · Amount on File |
| Deed Document Number | 2000124995 |
| Prior Transfer Date | Feb 24, 1994 |
| Prior Transfer Doc | 0000065652 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 104 WARREN ST, MARTINEZ, CA 94553-2431 |
| Transaction Type | Mortgage |
| Record Updated | Jul 3, 2023 |
| Name | Verified Name |
|---|---|
| Address | 104 WARREN ST, MARTINEZ, CA 94553-2431 |
| Document Number | 0000059155 |
|---|---|
| Date | Jun 22, 2023 |
| Instrument | 2023-059155 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 241 Months |
| Due | Jul 1, 2043 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 104 WARREN ST, MARTINEZ, CA 94553-2431 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | AMROCK INC |
| Name | Verified Name |
|---|
| Document Number | 0000283692 |
|---|---|
| Date | Nov 23, 2020 |
| Instrument | 2020-283692 |
| Name | QUICKEN LOANS LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 104 WARREN ST, MARTINEZ, CA 94553-2431 |
| Document Number | 0000193555 |
| Instrument Date | Oct 24, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Nov 12, 2019 |
| Title Company | AMROCK TITLE CA INC |
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 104 WARREN ST MARTINEZ CA 945532431, MARTINEZ, CA 94553-2431 |
| Document Number | 0000193555 |
|---|---|
| Date | Oct 31, 2019 |
| Instrument | 193555 |
| Name | QUICKEN LNS |
|---|---|
| Type | Funding / Finance Company |
| Address | DETROIT, MI 48226-1906 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Oct 30, 2049 |
The 2025 property tax bill for 104 Warren St was $2,350.
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 | $120,835 (+2%) Land $21,970 Building $98,865 | |
| 2025 | $2,350.00 | $118,467 Land $21,540 Building $96,927 |
| 2023 | $2,209.00 (+1.38%) | $113,868 Land $20,704 Building $93,164 |
| 2022 | $2,179.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 104 Warren St in Zone X, an area of minimal flood risk, though there have been 12 flood claims nearby since 1980.
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 |
| Flood Insurance Cost | Premium on File median of 23 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 23 in force |
| Nearby Flood Claims | 12 (1980–2022) |
| Claims Outside the SFHA | 3 of 12 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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.
Wildfire risk around 104 Warren St is high, ranking above 71% of the US, with a 0.4% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 71% of the US · above 46% 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 348 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 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Unwired.
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