Contra Costa County property record for 105 C St, Martinez, CA 94553
| Property Type | Triplex |
|---|---|
| Details | 2,736 sqft · built 1964 |
| Lot Size | 0.201 acres (8,750 sqft) |
| Owner | Individual Name on File |
| Last Sale | $637,000 (Aug 2014) |
| Tax Bill | $11,276 (2025) |
| Deeds & Mortgages | Jan 2021 Transfer Aug 2020 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 372-191-014-3 |
| Primary APN | 372-191-014-3 |
|---|---|
| Alternative APN |
|
| Total Rooms | 3 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 2,736 sqft Living Area |
| 1st Floor Area | 2,736 sqft |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Architectural Style | Triplex |
| Lot Area | 8,750 sqft (0.201 acres) |
| Parking Spaces | 4 Parking Spaces |
| Street Address | 105 C ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3154 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Legal Description | ORIGINAL SURVEY POR BLK 170 |
| Legal Subdivision | MARTINEZ |
| Legal Block | 170 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2015 |
| Census Tract | 318000 |
Source: Contra Costa County records · APN 372-191-014-3
Assessment roll updated July 14, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | PO BOX 6240, GARDNERVILLE, NV 89460-4603 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jan 12, 2021 | Quit Claim Deed, Transfer NOT AVAILABLE |
| Aug 26, 2020 | Affidavit of Death, Transfer ATTORNEY ONLY |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 01, 2014 · Amount on Record |
| Deed Sale | Aug 01, 2014 · Amount on Record |
| Deed Document Number | 2014127653 |
| Last Transfer Date | Dec 28, 2020 |
| Transfer Doc | 0000010276 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jan 12, 2021 |
| Property Address | 105 C ST, MARTINEZ, CA 94553-3154 |
| Document Number | 0000010276 |
| Instrument Date | Dec 28, 2020 |
| Instrument | 10276 |
| Transaction Type | Transfer |
| Record Updated | Jan 22, 2021 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Sole Owner |
| Address | PO BOX 6240 GARDNERVILLE NV 894604603, GARDNERVILLE, NV 89460-4603 |
| Document Type | Affidavit of Death |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Aug 26, 2020 |
| Property Address | 105 C ST, MARTINEZ, CA 94553-3154 |
| Document Number | 0000183228 |
| Instrument Date | Aug 18, 2020 |
| Instrument | 183228 |
| Transaction Type | Transfer |
| Record Updated | Sep 25, 2020 |
| Title Company | ATTORNEY ONLY |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | PO BOX 6240 GARDNERVILLE NV 894604603, GARDNERVILLE, NV 89460-4603 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez City |
| Unified School District | Martinez Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $780,754 (+2%) Land $459,701 Building $321,053 | |
| 2025 | $11,276.00 (+5.2%) | $765,446 (+4.04%) Land $450,688 Building $314,758 |
| 2023 | $10,719.00 (+0.48%) | $735,725 Land $433,188 Building $302,537 |
| 2022 | $10,668.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 5 (1982–2017) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, And Mudslides |
| Wildfire Risk | Moderate above 59% of the US · lower than 64% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect within ember reach |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Radiate Holdings Fiber · Cable in parts of the area | 1,500 / 1,500 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Unwired.
Based on FCC filings for 358 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF MARTINEZ serves 31,015 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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