Contra Costa County property record for 21 E 16th St, Antioch, CA 94509 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,449 sqft · built 1947 |
| Lot Size | 0.125 acres (5,432 sqft) |
| Owner | Individual Name on File |
| Last Sale | $540,000 (Sep 2021) |
| Tax Bill | $6,976 (2025) |
| Deeds & Mortgages | Sep 2021 Sale & Mortgage Jun 2019 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 065-182-017-7 |
| Primary APN | 065-182-017-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,449 sqft Living Area |
| 1st Floor Area | 1,449 sqft |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 2010 |
| Lot Area | 5,432 sqft (0.125 acres) |
| Garage Type | Attached |
| Garage Area | 554 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 21 E 16TH ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-2455 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | VISTA DE DIABLO LOT 6 & E 6 FT LOT 5 |
| Legal Subdivision | VISTA DE DIABLO |
| Legal Lot Number | 6,5 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 306003 |
Source: Contra Costa County records · APN 065-182-017-7
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 | Individual Name on File |
|---|---|
| Mailing Address | 21 E 16TH ST, ANTIOCH, CA 94509-2455 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Sep 20, 2021 | Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Jun 26, 2019 | Affidavit of Death, Transfer ATTORNEY ONLY |
| Jun 26, 2019 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 20, 2021 · Amount on Record |
| Deed Sale | Sep 20, 2021 · Amount on Record |
| Prior Sale | Jan 03, 2008 · Amount on Record |
| Deed Document Number | 2021260876 |
| Prior Transfer Date | May 09, 2019 |
| Prior Transfer Doc | 0000098025 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 20, 2021 |
| Property Address | 21 E 16TH ST, ANTIOCH, CA 94509-2455 |
| Document Number | 0000260876 |
| Map Reference | MB 23 PG 732 |
| Instrument Date | Sep 16, 2021 |
| Instrument | 2021-260876 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 8015 HILLSIDE ST, OAKLAND, CA 94605-3455 |
| Document Number | 0000260877 |
|---|---|
| Date | Sep 20, 2021 |
| Instrument | 2021-260877 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 01, 2051 |
| Document Type | Affidavit of Death |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 26, 2019 |
| Property Address | 21 E 16TH ST, ANTIOCH, CA 94509-2455 |
| Document Number | 0000098024 |
| Instrument Date | May 09, 2019 |
| Instrument | 98024 |
| Transaction Type | Transfer |
| Record Updated | Jul 08, 2019 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 21 E 16TH ST ANTIOCH CA 945092455, ANTIOCH, CA 94509-2455 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 26, 2019 |
| Property Address | 21 E 16TH ST, ANTIOCH, CA 94509-2455 |
| Document Number | 0000098025 |
| Instrument Date | May 09, 2019 |
| Instrument | 98025 |
| Transaction Type | Transfer |
| Record Updated | Jul 08, 2019 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 1207 LEWIS AVE VALLEJO CA 945918083, VALLEJO, CA 94591-8083 |
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 | $583,968 (+2%) Land $259,782 Building $324,186 | |
| 2025 | $6,976.00 (+4.97%) | $572,519 (+4.04%) Land $254,689 Building $317,830 |
| 2023 | $6,646.00 (+1.62%) | $550,290 Land $244,800 Building $305,490 |
| 2022 | $6,540.00 |
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 |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | 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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