Contra Costa County property record for 121 Main St, Martinez, CA 94553 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,703 sqft · built 1941 |
| Lot Size | 0.141 acres (6,150 sqft) |
| Owner | Company Name on File |
| Last Sale | $449,000 (Dec 2013) |
| Tax Bill | $7,345 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage Mar 2018 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 372-080-009-7 |
| Primary APN | 372-080-009-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,703 sqft Living Area |
| 1st Floor Area | 1,502 sqft |
| Basement Area | 201 sqft |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1958 |
| Lot Area | 6,150 sqft (0.141 acres) |
| Garage Type | Attached |
| Garage Area | 260 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 121 MAIN ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-1518 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | ORIG SURVEY POR LOTS 3 & 6 BLK 15 |
| Legal Subdivision | MARTINEZ |
| Legal Block | 15 |
| Legal Lot Number | 3,6 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 318000 |
Source: Contra Costa County records · APN 372-080-009-7
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 121 MAIN ST, MARTINEZ, CA 94553-1518 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Oct 16, 2020 | Intrafamily Transfer, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Mar 01, 2018 | Quit Claim Deed, Transfer Quitclaim |
| Mar 01, 2018 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 27, 2013 · Amount on Record |
| Deed Sale | Dec 27, 2013 · Amount on Record |
| Prior Sale | Sep 16, 2008 · Amount on Record |
| Deed Document Number | 2013295223 |
| Last Transfer Date | Oct 07, 2020 |
| Transfer Doc | 0000240010 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 16, 2020 |
| Property Address | 121 MAIN ST, MARTINEZ, CA 94553-1518 |
| Document Number | 0000240010 |
| Instrument Date | Oct 07, 2020 |
| Instrument | 2020-240010 |
| Transaction Type | Transfer |
| Record Updated | Jul 19, 2022 |
| Title Company | FIDELITY NATIONAL TITLE CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 121 MAIN ST, MARTINEZ, CA 94553-1518 |
| Document Number | 0000240011 |
|---|---|
| Date | Oct 16, 2020 |
| Instrument | 2020-240011 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 301 Months |
| Due | Nov 01, 2045 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Mar 01, 2018 |
| Property Address | 121 MAIN ST, MARTINEZ, CA 94553-1518 |
| Document Number | 0000032288 |
| Instrument Date | Feb 28, 2018 |
| Instrument | 32288 |
| Transaction Type | Transfer |
| Record Updated | Mar 08, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 121 MAIN ST MARTINEZ CA 945531518, MARTINEZ, CA 94553-1518 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Mar 01, 2018 |
| Property Address | 121 MAIN ST, MARTINEZ, CA 94553-1518 |
| Document Number | 0000032287 |
| Instrument Date | Feb 28, 2018 |
| Instrument | 32287 |
| Transaction Type | Transfer |
| Record Updated | Mar 08, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 121 MAIN ST MARTINEZ CA 945531518, MARTINEZ, CA 94553-1518 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 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 | $561,408 (+2%) Land $250,069 Building $311,339 | |
| 2025 | $7,345.00 (+6.51%) Homeowner's exemption | $550,401 (+4.04%) Land $245,166 Building $305,235 |
| 2023 | $6,896.00 (+1.67%) Homeowner's exemption | $529,030 Land $235,647 Building $293,383 |
| 2022 | $6,783.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133180002, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 5 (1982–2017) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | Jan 2017, rainfall accumulation, Severe Winter Storms, Flooding, And Mudslides |
| Wildfire Risk | Moderate above 69% of the US · above 43% of California |
|---|---|
| Wildfire Likelihood | About 1 in 402 per year |
| 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, availability as of December 31, 2025 · Published October 2026 · based on 348 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Radiate Holdings | Fiber | 1,500 / 1,500 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Unwired, AT&T, Radiate Holdings. Availability varies by address; speeds are provider-advertised maximums, not measured.
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