Contra Costa County property record for 100 McMahon Ct, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 2.5 ba · 3,281 sqft · built 2002 |
| Lot Size | 0.413 acres (17,990 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $740,000 (Mar 2012) |
| Tax Bill | $13,044 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 366-210-011-8 |
| Primary APN | 366-210-011-8 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 3,281 sqft Living Area |
| 1st Floor Area | 2,556 sqft |
| 2nd Floor Area | 725 sqft |
| Year Built | Built 2002 |
|---|---|
| Effective Year Built | Effective 2003 |
| Lot Area | 17,990 sqft (0.413 acres) |
| Garage Type | Attached |
| Garage Area | 654 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 100 MCMAHON CT |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-6164 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8397 LOT 1 & POR LOT 10 |
| Legal Subdivision | SUBDIVISION 8397 |
| Legal Tract | 8397 |
| Legal Lot Number | 1,10 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 321103 |
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 | 100 MCMAHON CT, MARTINEZ, CA 94553-6164 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 20, 2012 · Amount on Record |
| Deed Sale | Mar 20, 2012 · Amount on Record |
| Prior Sale | Aug 21, 2003 · Amount on Record |
| Deed Document Number | 201263203 |
| Prior Transfer Date | Nov 25, 2003 |
| Prior Transfer Doc | 0000573208 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 100 MCMAHON CT, MARTINEZ, CA 94553-6164 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | BOSTON NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 100 MCMAHON CT, MARTINEZ, CA 94553-6164 |
| Document Number | 0000234233 |
|---|---|
| Date | Oct 12, 2020 |
| Instrument | 2020-234233 |
| Name | CHERRY CREEK MORTGAGE CO INC |
|---|---|
| Type | Mortgage Company |
| Address | ENGLEWOOD, CO 80111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Nov 1, 2035 |
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 | $956,853 (+2%) Land $512,466 Building $444,387 | |
| 2025 | $13,044.00 (+6.36%) | $938,092 (+4.04%) Land $502,418 Building $435,674 |
| 2023 | $12,264.00 (+1.95%) | $901,666 Land $482,909 Building $418,757 |
| 2022 | $12,030.00 |
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 |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 4 (1995–1998) |
| Claims Outside the SFHA | 1 of 4 |
| Most Recent Claim | Mar 1998 · Severe Winter Storms And Flooding |
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 45% of the US · lower than 73% of California |
|---|---|
| Wildfire Likelihood | 0.08% 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 | 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 256 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 · Fiber in parts of the area | 100 / 20 |
May also be available: Astound Broadband, T-Mobile, Unwired, Verizon.
5G (outdoors only) and 4G LTE
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