Contra Costa County property records for 47 addresses on Green Castle Cir, Discovery Bay, CA · Last verified October 2026
| Properties | 47 |
|---|---|
| Median Sale Price | $760,000 |
| Deeds and Mortgages on File | 91 |
| Median Price per Sqft | $224 |
| Owner Occupied | 81% |
| Median Annual Tax Bill | $9,760 |
| Median Year Built | 2005 |
| Median Ownership Tenure | 12 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6400 Green Castle Cir |
4 bd · 4 ba · 3,714 sqft built 2005 · 0.18 acres | $856,500 Apr 2006 | $10,812 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6401 Green Castle Cir |
4 bd · 4 ba · 4,088 sqft built 2005 · 0.22 acres | $202,000 May 2016 | $7,332 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6406 Green Castle Cir |
4 bd · 3.5 ba · 3,505 sqft built 2006 · 0.153 acres | $820,000 Feb 2024 | $11,343 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6409 Green Castle Cir |
5 bd · 4 ba · 4,011 sqft built 2005 · 0.175 acres | $510,000 Nov 2013 | $8,950 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6414 Green Castle Cir |
4 bd · 4 ba · 4,088 sqft built 2005 · 0.153 acres | $750,000 Nov 2020 | $10,997 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6417 Green Castle Cir |
2 bd · 3 ba · 2,562 sqft built 2005 · 0.175 acres | $613,000 Mar 2006 | $10,648 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6422 Green Castle Cir |
4 bd · 3.5 ba · 3,425 sqft built 2005 · 0.153 acres | $795,000 Jun 2021 | $11,608 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6425 Green Castle Cir |
4 bd · 3 ba · 3,405 sqft built 2005 · 0.175 acres | $650,000 Mar 2006 | $10,758 2025 | Assessor Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6430 Green Castle Cir |
4 bd · 3 ba · 2,562 sqft built 2005 · 0.153 acres | $760,000 Dec 2024 | $10,505 2025 | Assessor Updated Aug 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6433 Green Castle Cir |
5 bd · 3 ba · 3,714 sqft built 2005 · 0.158 acres | $480,000 Jun 2014 | $9,100 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6438 Green Castle Cir |
4 bd · 3 ba · 3,405 sqft built 2005 · 0.153 acres | $630,000 Nov 2006 | $11,043 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6441 Green Castle Cir |
3 bd · 3.5 ba · 3,425 sqft built 2005 · 0.158 acres | $457,000 Apr 2014 | $8,238 2025 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6446 Green Castle Cir |
4 bd · 3 ba · 3,714 sqft built 2005 · 0.15 acres | $330,000 Jul 2011 | $6,640 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6449 Green Castle Cir |
4 bd · 3 ba · 4,088 sqft built 2005 · 0.158 acres | $381,000 Jun 2020 | $7,552 2025 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6454 Green Castle Cir |
4 bd · 3.5 ba · 3,425 sqft built 2005 · 0.15 acres | $789,000 Feb 2026 | $9,003 2025 | Assessor + 4 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6457 Green Castle Cir |
4 bd · 3.5 ba · 3,505 sqft built 2006 · 0.158 acres | $569,000 Nov 2018 | $9,132 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6462 Green Castle Cir |
5 bd · 4 ba · 4,011 sqft built 2005 · 0.15 acres | $360,000 Mar 2009 | $7,255 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6465 Green Castle Cir |
4 bd · 3 ba · 2,562 sqft built 2005 · 0.159 acres | $689,000 Aug 2025 | $10,113 2025 | Assessor + 5 Documents Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6470 Green Castle Cir |
4 bd · 3.5 ba · 3,505 sqft built 2005 · 0.149 acres | $315,000 Sep 2009 | $6,631 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6473 Green Castle Cir |
4 bd · 4 ba · 3,714 sqft built 2005 · 0.158 acres | $739,000 Jun 2021 | $10,943 2025 | Assessor + 3 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6478 Green Castle Cir |
4 bd · 3 ba · 2,562 sqft built 2005 · 0.15 acres | $768,000 Jan 2024 | $10,761 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6481 Green Castle Cir |
4 bd · 2 ba · 2,033 sqft built 2005 · 0.175 acres | $515,000 Apr 2016 | $8,780 2025 | Assessor + 4 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6486 Green Castle Cir |
4 bd · 3 ba · 4,088 sqft built 2005 · 0.193 acres | $802,000 Apr 2006 | $8,019 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6500 Green Castle Cir |
5 bd · 4 ba · 4,285 sqft built 2005 · 0.193 acres | $870,000 Nov 2021 | $12,295 2025 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6505 Green Castle Cir |
3 bd · 2 ba · 2,033 sqft built 2005 · 0.175 acres | $235,000 May 2011 | $5,472 2025 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6508 Green Castle Cir |
4 bd · 3 ba · 3,405 sqft built 2005 · 0.15 acres | $375,000 Feb 2013 | $7,236 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6511 Green Castle Cir |
4 bd · 3 ba · 2,562 sqft built 2005 · 0.158 acres | $360,000 Nov 2008 | $7,255 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6516 Green Castle Cir |
4 bd · 4 ba · 3,714 sqft built 2005 · 0.149 acres | $700,000 Dec 2005 | $10,768 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6519 Green Castle Cir |
4 bd · 4 ba · 3,714 sqft built 2005 · 0.161 acres | $600,000 Jan 2020 | $9,290 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6524 Green Castle Cir |
4 bd · 3.5 ba · 3,425 sqft built 2005 · 0.151 acres | $671,000 Dec 2005 | $10,571 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6527 Green Castle Cir |
4 bd · 4 ba · 4,088 sqft built 2005 · 0.161 acres | $400,000 Feb 2013 | $7,820 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6532 Green Castle Cir |
4 bd · 3 ba · 2,562 sqft built 2005 · 0.151 acres | $583,000 Dec 2005 | $9,760 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6535 Green Castle Cir |
5 bd · 4 ba · 4,011 sqft built 2005 · 0.161 acres | $530,000 Nov 2015 | $9,608 2025 | Assessor + 5 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6540 Green Castle Cir |
4 bd · 3.5 ba · 3,505 sqft built 2005 · 0.151 acres | $660,000 May 2020 | $10,010 2025 | Assessor + 3 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6543 Green Castle Cir |
3 bd · 3 ba · 3,405 sqft built 2005 · 0.169 acres | $580,000 Sep 2019 | $9,127 2025 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6548 Green Castle Cir |
4 bd · 4 ba · 4,285 sqft built 2005 · 0.152 acres | $361,000 May 2009 | $7,191 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6551 Green Castle Cir |
4 bd · 3 ba · 2,562 sqft built 2005 · 0.166 acres | $663,000 Feb 2006 | $10,034 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6556 Green Castle Cir |
4 bd · 3.5 ba · 3,425 sqft built 2005 · 0.152 acres | $770,000 Nov 2024 | $10,615 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6559 Green Castle Cir |
4 bd · 3.5 ba · 3,505 sqft built 2005 · 0.166 acres | $365,000 Jun 2012 | $7,475 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6564 Green Castle Cir |
5 bd · 4 ba · 4,011 sqft built 2005 · 0.152 acres | $600,000 Apr 2017 | $9,807 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6567 Green Castle Cir |
4 bd · 3 ba · 3,714 sqft built 2005 · 0.188 acres | $921,227 Jul 2024 | $12,241 2025 | Assessor + 3 Documents Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6572 Green Castle Cir |
5 bd · 3 ba · 3,405 sqft built 2005 · 0.152 acres | $208,500 Jun 2021 | $10,143 2025 | Assessor + 5 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6575 Green Castle Cir |
4 bd · 3.5 ba · 3,425 sqft built 2005 · 0.189 acres | $667,500 Feb 2006 | $11,240 2025 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6580 Green Castle Cir |
4 bd · 3 ba · 2,562 sqft built 2005 · 0.152 acres | $628,500 Nov 2005 | $9,760 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6583 Green Castle Cir |
4 bd · 3 ba · 4,088 sqft built 2005 · 0.215 acres | $845,500 Apr 2006 | $12,172 2025 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6588 Green Castle Cir |
4 bd · 3.5 ba · 3,505 sqft built 2005 · 0.15 acres | $598,000 Jun 2018 | $10,098 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6596 Green Castle Cir |
5 bd · 4 ba · 3,929 sqft built 2005 · 0.196 acres | $396,000 Jun 2012 | $7,549 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |