Contra Costa County property record for 4311 Null Dr, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,816 sqft · built 1966 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $110,000 (Mar 2009) |
| Tax Bill | $2,159 (2025) |
| Deeds & Mortgages | Oct 2021 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 074-261-037-1 |
| Primary APN | 074-261-037-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,816 sqft Living Area |
| Gross Area | 2,152 sqft |
| 1st Floor Area | 1,816 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1966 |
|---|---|
| Effective Year Built | Effective 1971 |
| Architectural Style | Bungalow |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 6,000 sqft (0.138 acres) |
| View / Lot | Canal |
| Garage Type | Attached |
| Garage Area | 336 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Window A/C |
|---|---|
| Heating System | Floor/Wall Furnace |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4311 DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | TRACT 3437 LOT 39 EX MR |
| Legal Subdivision | NEW DELTA ESTATES UNIT #6 |
| Legal Tract | 3437 |
| Legal Lot Number | 39 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 307201 |
Source: Contra Costa County assessment roll, 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 Company Names on File |
|---|---|
| Mailing Address | 1824 SANTA RITA DR, PITTSBURG, CA 94565-7652 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 18, 2009 · Amount on Record |
| Deed Sale | Mar 18, 2009 · Amount on Record |
| Prior Sale | Oct 2, 2008 · Amount on Record |
| Deed Document Number | 200957092 |
| Last Transfer Date | Aug 3, 2016 |
| Transfer Doc | 0000154995 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4311 NULL DR, ANTIOCH, CA 94509-4341 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | NORTH AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Address | 4871 MYRTLE DR, CONCORD, CA 94521-1433 |
| Document Number | 0000285328 |
|---|---|
| Date | Oct 15, 2021 |
| Instrument | 2021-285328 |
| Name | FREMONT BANK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Oct 1, 2046 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $144,465 (+2%) Land $32,826 Building $111,639 | |
| 2025 | $2,159.00 (+6.46%) | $141,633 (+4.04%) Land $32,183 Building $109,450 |
| 2023 | $2,028.00 (+1.3%) | $136,134 Land $30,934 Building $105,200 |
| 2022 | $2,002.00 |
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 | Moderate above 44% of the US · lower than 74% of California |
|---|---|
| Wildfire Likelihood | 0.09% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2024 |
| Lead | Under 1 ppb (2022–2024) 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 417 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Unwired.
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