Contra Costa County property record for 4129 Florence Dr, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 2 ba · 1,744 sqft · built 1960 |
| Lot Size | 0.269 acres (11,700 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $615,500 (Apr 2007) |
| Tax Bill | $10,564 (2025) |
| Flood Zone | Zone AO (high risk) |
| APN | 370-050-013-9 |
| Primary APN | 370-050-013-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,744 sqft Living Area |
| 1st Floor Area | 1,744 sqft |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1960 |
| Lot Area | 11,700 sqft (0.269 acres) |
| Heating System | Central |
|---|
| Street Address | 4129 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 13 |
| Legal Subdivision | TURTLE GLEN PARK |
| Legal Tract | 2443 |
| Legal Lot Number | 13 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3024 |
| 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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 4129 FLORENCE DR, MARTINEZ, CA 94553-3811 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 16, 2007 · Amount on Record |
| Deed Sale | Apr 16, 2007 · Amount on Record |
| Prior Sale | Mar 29, 2007 |
| Deed Document Number | 2007109886 |
| Last Transfer Date | Nov 2, 2010 |
| Transfer Doc | 0000261669 |
| Record Updated | Oct 29, 2026 |
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 | $841,114 (+2%) Land $491,961 Building $349,153 | |
| 2025 | $10,564.00 (+6.51%) Homeowner's exemption | $824,622 (+4.04%) Land $482,315 Building $342,307 |
| 2023 | $9,918.00 (+1.69%) Homeowner's exemption | $792,603 Land $463,587 Building $329,016 |
| 2022 | $9,753.00 |
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 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 Record 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.
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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