Contra Costa County property record for 1020 Warren St, Martinez, CA 94553
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 3,915 sqft · built 1906 |
| Lot Size | 0.149 acres (6,500 sqft) |
| Owner | Company Name on Record |
| Last Sale | $855,000 (Dec 2015) |
| Tax Bill | $14,167 (2025) |
| Deeds & Mortgages | Jun 2023 Transfer Jun 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 374-113-003-7 |
| Primary APN | 374-113-003-7 |
|---|---|
| Alternative APN |
|
| Total Rooms | 3 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 3,915 sqft Living Area |
| Gross Area | 2,053 sqft |
| 1st Floor Area | 2,053 sqft |
| Year Built | Built 1906 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Multi-Family |
| Lot Area | 6,500 sqft (0.149 acres) |
| Street Address | 1020 WARREN ST |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-1851 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | FRAZER ADDN LOT 2 POR 3 BLK 116 |
| Legal Subdivision | FRAZER ADD |
| Legal Block | 116 |
| Legal Lot Number | 2 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1030 |
| Census Tract | 317000 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 1874 ARKELL RD, WALNUT CREEK, CA 94598-1213 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jun 5, 2023 | Intrafamily Transfer, Transfer |
| Jun 5, 2023 | Intrafamily Transfer, Transfer |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 11, 2015 · Amount on Record |
| Deed Sale | Dec 11, 2015 · Amount on Record |
| Prior Sale | Jun 10, 1997 · Amount on Record |
| Deed Document Number | 2015255850 |
| Prior Transfer Date | Mar 9, 1994 |
| Prior Transfer Doc | 0000102188 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 5, 2023 |
| Property Address | 1020 WARREN ST, MARTINEZ, CA 94553-1851 |
| Document Number | 0000053099 |
| Map Reference | VOL B PG 29 |
| Instrument Date | May 24, 2023 |
| Instrument | 2023-053099 |
| Transaction Type | Transfer |
| Record Updated | Jun 14, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1874 ARKELL RD, WALNUT CREEK, CA 94598-1213 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 5, 2023 |
| Property Address | 1020 WARREN ST, MARTINEZ, CA 94553-1851 |
| Document Number | 0000053098 |
| Map Reference | VOL B PG 29 |
| Instrument Date | May 24, 2023 |
| Instrument | 2023-053098 |
| Transaction Type | Transfer |
| Record Updated | Jun 14, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1874 ARKELL RD, WALNUT CREEK, CA 94598-1213 |
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 | $1,032,382 (+2%) Land $362,238 Building $670,144 | |
| 2025 | $14,167.00 (+5.46%) | $1,012,140 (+4.04%) Land $355,136 Building $657,004 |
| 2023 | $13,433.00 (+0.74%) | $972,840 Land $341,347 Building $631,493 |
| 2022 | $13,334.00 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AO, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 1 (2006) |
| Most Recent Claim | Mar 2006 · rainfall accumulation |
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 | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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 853 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Fiber · Cable in parts of the area | 1,500 / 1,500 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Unwired.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures