Contra Costa County property record for 4911 Thatcher Dr, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,547 sqft · built 1989 |
| Lot Size | 0.092 acres (4,000 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $788,000 (May 2025) |
| Tax Bill | $5,741 (2025) |
| Deeds & Mortgages | Apr 2026 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 161-420-085-3 |
| Primary APN | 161-420-085-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,547 sqft Living Area |
| 1st Floor Area | 820 sqft |
| 2nd Floor Area | 727 sqft |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1997 |
| Architectural Style | Cluster |
| Lot Area | 4,000 sqft (0.092 acres) |
| Garage Type | Attached |
| Garage Area | 432 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4911 THATCHER DR |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-4380 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T6842 L38 |
| Legal Subdivision | SUBDIVISION 6842 |
| Legal Tract | 6842 |
| Legal Lot Number | 38 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4015 |
| Census Tract | 320004 |
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 | 1415 CANYON VILLAGE CIR, SAN RAMON, CA 94583-1866 |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 21, 2025 · Amount on Record |
| Deed Sale | May 21, 2025 · Amount on Record |
| Deed Document Number | 202550582 |
| Prior Transfer Date | Feb 28, 2025 |
| Prior Transfer Doc | 0000021668 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 10, 2026 |
| Property Address | 4911 THATCHER DR, MARTINEZ, CA 94553-4380 |
| Document Number | 0000036187 |
| Instrument Date | Apr 2, 2026 |
| Instrument | 202636187 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Name | Verified Name |
|---|---|
| Relationship | Community Property, 149 |
| Address | 4911 THATCHER DR, MARTINEZ, CA 94553-4380 |
| Document Number | 0000036187, |
|---|---|
| Date | Apr 10, 2026 |
| Instrument | 202636187 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 1, 2056 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 6% |
| Initial Type | Fixed Rate |
| Max Rate | -1% |
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 | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $803,760 (+91.94%) Land $459,000 Building $344,760 | |
| 2025 | $5,741.00 (+5.19%) | $418,750 (+4.04%) Land $137,074 Building $281,676 |
| 2023 | $5,458.00 (+2.11%) Homeowner's exemption | $402,491 Land $131,752 Building $270,739 |
| 2022 | $5,345.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) 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 334 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| 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: Astound Broadband.
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