Contra Costa County property records for 8 addresses on Observation Ct, Antioch, CA · Last verified August 2026
| Properties | 8 |
|---|---|
| Median Sale Price | $615,000 |
| Deeds and Mortgages on File | 21 |
| Median Price per Sqft | $198 |
| Owner Occupied | 88% |
| Median Annual Tax Bill | $7,994 |
| Median Year Built | 2002 |
| Median Ownership Tenure | 9 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
4 bd · 3 ba · 3,527 sqft · 0.268 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $615,000Mar 2019 | $7,9942025 | Amount on Record Jun 2013 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
6 bd · 4 ba · 3,871 sqft · 0.271 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $199,500May 2003 | $9,5812025 | Amount on Record Sep 2002 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 3 ba · 3,409 sqft · 0.25 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $350,000Mar 2012 | $5,4062025 | Amount on Record Jul 2005 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 3 ba · 2,888 sqft · 0.304 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $720,000Dec 2006 | $9,0652025 | Amount on Record Sep 2002 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 3 ba · 3,527 sqft · 0.207 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $700,000Dec 2019 | $8,8282025 | Amount on Record Apr 2015 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 3 ba · 3,409 sqft · 0.249 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $799,000Jun 2026 | $7,9092025 | Amount on Record Aug 2018 | 1 Name on Record Owner Occupied | Assessor + 7 DocumentsUpdated Aug 2026 |
6 bd · 4 ba · 3,871 sqft · 0.231 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Sep 2012 | $5,4122025 | Amount on Record Aug 2011 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,345 sqft · 0.289 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $520,000Jun 2017 | $7,1282025 | Amount on Record Sep 2002 | 1 Name on Record | Assessor + 4 DocumentsUpdated Jul 2026 |