Contra Costa County property record for 720 B St, Antioch, CA 94509 · Last verified July 2026
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 2 ba · 1,633 sqft · built 1961 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $308,500 (Dec 2016) |
| Tax Bill | $5,120 (2025) |
| Deeds & Mortgages | Oct 2019 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 066-183-013-3 |
| Primary APN | 066-183-013-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,633 sqft Living Area |
| 1st Floor Area | 1,633 sqft |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1961 |
| Architectural Style | Duplex Single |
| Lot Area | 5,000 sqft (0.115 acres) |
| Garage Type | Attached |
| Garage Area | 615 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 720 B ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-1714 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | TOWN OF ANTIOCH LOT 12 BLK 98 |
| Legal Subdivision | ANTIOCH |
| Legal Block | 98 |
| Legal Lot Number | 12 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1017 |
| Census Tract | 305000 |
Source: Contra Costa County records · APN 066-183-013-3
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 Individual Names on File |
|---|---|
| Mailing Address | 4592 EL MONTE CT, OAKLEY, CA 94561-4106 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Dec 29, 2016 · Amount on Record |
| Deed Sale | Dec 29, 2016 · Amount on Record |
| Deed Document Number | 2016282961 |
| Last Transfer Date | Oct 07, 2019 |
| Transfer Doc | 0000172438 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 10, 2019 |
| Property Address | 720 B ST, ANTIOCH, CA 94509-1714 |
| Document Number | 0000172438 |
| Instrument Date | Oct 07, 2019 |
| Instrument | 2019-172438 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 4582 EL MONTE CT, OAKLEY, CA 94561-4106 |
| Document Number | 0000172439 |
|---|---|
| Date | Oct 10, 2019 |
| Instrument | 2019-172439 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 01, 2049 |
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 | $365,196 (+2%) Land $153,891 Building $211,305 | |
| 2025 | $5,120.00 (+6.14%) | $358,036 (+4.04%) Land $150,874 Building $207,162 |
| 2023 | $4,824.00 (+1.41%) | $344,134 Land $145,016 Building $199,118 |
| 2022 | $4,757.00 |
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 | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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