Contra Costa County property record for 4121 Florence Dr, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,384 sqft · built 1960 |
| Lot Size | 0.255 acres (11,100 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $1,877 (2025) |
| Deeds & Mortgages | Aug 2020 Mortgage |
| Flood Zone | Zone AO (high risk) |
| APN | 370-050-012-1 |
| Primary APN | 370-050-012-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,384 sqft Living Area |
| 1st Floor Area | 1,384 sqft |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1960 |
| Lot Area | 11,100 sqft (0.255 acres) |
| Garage Type | Attached |
| Garage Area | 483 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4121 FLORENCE DR |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3811 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R160 |
| Legal Description | TRACT 2443 12 |
| Legal Subdivision | 2443 TRESTLE GLEN PARK |
| Legal Tract | 2443 |
| Legal Lot Number | 12 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3024 |
| Census Tract | 318000 |
4121 Florence Dr is held in a trust since March 2004.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | PO BOX 3155, MARTINEZ, CA 94553-8155 |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 30, 2004 |
| Deed Sale | Mar 30, 2004 |
| Deed Document Number | 2004108405 |
| Prior Transfer Date | Mar 29, 2004 |
| Prior Transfer Doc | 0000108405 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4121 FLORENCE DR, MARTINEZ, CA 94553-3811 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | PO BOX 3155, MARTINEZ, CA 94553-8155 |
| Document Number | 0000186750 |
|---|---|
| Date | Aug 28, 2020 |
| Instrument | 2020-186750 |
| Name | FAIRWAY INDEPENDENT MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Address | CARROLLTON, TX 75007 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Sep 1, 2050 |
The 2025 property tax bill for 4121 Florence Dr was $1,877.
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 | $78,844 (+2%) Land $23,325 Building $55,519 | |
| 2025 | $1,877.00 | $77,299 Land $22,868 Building $54,431 |
| 2023 | $1,765.00 (+1.26%) | $74,299 Land $21,981 Building $52,318 |
| 2022 | $1,743.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4121 Florence Dr in Zone AO, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AO high risk · sheet flow 1–3 ft |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 109 policies |
| Nearby Flood Policies | 109 in force |
| Nearby Flood Claims | 32 (1980–2019) |
| Claims Outside the SFHA | 3 of 32 |
| Most Recent Claim | Feb 2019 |
| 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 4121 Florence Dr is moderate, ranking above 64% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 64% of the US · lower than 60% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Direct burnable vegetation |
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 212 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
May also be available: Astound Broadband, T-Mobile, Unwired, Verizon.
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