Contra Costa County property record for 4307 Null Dr, Antioch, CA 94509 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,569 sqft · built 1966 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $245,000 (Aug 2001) |
| Tax Bill | $4,621 (2025) |
| Deeds & Mortgages | Oct 2020 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 074-261-036-3 |
| Primary APN | 074-261-036-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,569 sqft Living Area |
| Gross Area | 2,041 sqft |
| 1st Floor Area | 1,569 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1966 |
|---|---|
| Effective Year Built | Effective 1967 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Roof Material | Composition Shingle |
| Lot Area | 6,000 sqft (0.138 acres) |
| Lot Dimensions | 100 ft deep x 60 ft wide |
| View / Lot | Canal |
| Garage Type | Attached |
| Garage Area | 472 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4307 DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 3437 LOT 40 EX MR |
| Legal Subdivision | NEW DELTA ESTATES |
| Legal Tract | 3437 |
| Legal Lot Number | 40 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 307201 |
Source: Contra Costa County records · APN 074-261-036-3
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 | 2 Company Names on File |
|---|---|
| Mailing Address | 5008 STAR MINE WAY, ANTIOCH, CA 94531-8049 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 28, 2001 · Amount on Record |
| Deed Sale | Aug 28, 2001 · Amount on Record |
| Prior Sale | Aug 30, 1996 · Amount on Record |
| Deed Document Number | 2001256618 |
| Last Transfer Date | May 21, 2020 |
| Transfer Doc | 0000232038 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 08, 2020 |
| Property Address | 4307 NULL DR, ANTIOCH, CA 94509-4341 |
| Document Number | 0000232038 |
| Instrument Date | May 21, 2020 |
| Instrument | 232038 |
| Transaction Type | Transfer |
| Record Updated | Oct 26, 2020 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 5008 STAR MINE WAY ANTIOCH CA 945318049, ANTIOCH, CA 94531-8049 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch 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 | $369,149 (+2%) Land $113,000 Building $256,149 | |
| 2025 | $4,621.00 (+5.31%) | $361,912 (+4.04%) Land $110,785 Building $251,127 |
| 2023 | $4,388.00 (+1.55%) | $347,860 Land $106,484 Building $241,376 |
| 2022 | $4,321.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 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 |
| Wildfire Risk | Moderate above 45% of the US · above 26% of California |
|---|---|
| Wildfire Likelihood | About 1 in 1,099 per year |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 417 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fixed Wireless | 300 / 20 |
| AT&T | Fixed Wireless | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
May also be available at this address: Unwired. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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