Contra Costa County property records for 27 addresses on Alumrock Dr, Antioch, CA · Last verified October 2026
| Properties | 27 |
|---|---|
| Median Sale Price | $705,000 |
| Deeds and Mortgages on File | 50 |
| Median Price per Sqft | $320 |
| Owner Occupied | 85% |
| Median Annual Tax Bill | $5,800 |
| Median Year Built | 1988 |
| Median Ownership Tenure | 9 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
501 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.16 acres | $448,000 Apr 2017 | $6,423 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
505 Alumrock Dr |
3 bd · 2.5 ba · 2,022 sqft built 1988 · 0.149 acres | $180,000 Sep 1994 | $3,912 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
508 Alumrock Dr |
5 bd · 3 ba · 2,591 sqft built 1988 · 0.144 acres | $560,000 Aug 2018 | $5,635 2025 | Assessor + 5 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
509 Alumrock Dr |
4 bd · 3 ba · 2,591 sqft built 1988 · 0.151 acres | $715,000 Aug 2025 | $4,491 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
512 Alumrock Dr |
3 bd · 2.5 ba · 2,022 sqft built 1988 · 0.189 acres | $510,000 Oct 2019 | $6,768 2025 | Assessor + 3 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
513 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.165 acres | $172,000 Dec 1988 | $4,585 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
516 Alumrock Dr |
3 bd · 2 ba · 1,653 sqft built 1988 · 0.18 acres | $130,000 Aug 1997 | $2,932 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
517 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.162 acres | $705,000 Jul 2021 | $8,146 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
520 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.181 acres | $755,000 Apr 2022 | $8,392 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
600 Alumrock Dr |
4 bd · 3 ba · 2,591 sqft built 1988 · 0.164 acres | $205,000 Oct 1996 | $4,264 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
601 Alumrock Dr |
3 bd · 2.5 ba · 2,022 sqft built 1988 · 0.147 acres | $570,000 Dec 2024 | $6,983 2025 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
604 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.153 acres | $690,000 Sep 2023 | $8,400 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
605 Alumrock Dr |
4 bd · 3 ba · 2,591 sqft built 1988 · 0.147 acres | $620,000 Feb 2007 | $8,291 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
608 Alumrock Dr |
3 bd · 2 ba · 1,407 sqft built 1988 · 0.144 acres | $419,000 Dec 2017 | $5,864 2025 | Assessor + 3 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
609 Alumrock Dr |
3 bd · 2 ba · 1,653 sqft built 1988 · 0.144 acres | $315,000 May 2017 | $5,153 2025 | Assessor + 5 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
612 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.149 acres | $290,000 Oct 2008 | $4,785 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
613 Alumrock Dr |
5 bd · 3 ba · 2,670 sqft built 1988 · 0.147 acres | $550,000 Jul 2018 | $7,469 2025 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
616 Alumrock Dr |
4 bd · 3 ba · 2,591 sqft built 1988 · 0.144 acres | — Oct 1998 | $4,593 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
617 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.159 acres | $171,500 Feb 1989 | $4,124 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
620 Alumrock Dr |
3 bd · 2 ba · 1,653 sqft built 1988 · 0.151 acres | $179,000 Aug 1998 | $3,748 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
700 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.156 acres | $690,000 Aug 2023 | $8,478 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
701 Alumrock Dr |
3 bd · 2 ba · 1,407 sqft built 1988 · 0.173 acres | $182,500 Oct 2009 | $3,245 2025 | Assessor Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
704 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.186 acres | $465,000 Oct 2017 | $7,131 2025 | Assessor + 5 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
705 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.171 acres | $400,000 Jul 2016 | $5,800 2025 | Assessor + 3 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
709 Alumrock Dr |
4 bd · 2.5 ba · 2,152 sqft built 1988 · 0.172 acres | $607,500 Feb 2024 | $7,538 2025 | Assessor + 2 Documents Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
712 Alumrock Dr |
5 bd · 3 ba · 2,591 sqft built 1988 · 0.238 acres | $810,000 Aug 2021 | $9,016 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
713 Alumrock Dr |
3 bd · 2 ba · 1,653 sqft built 1988 · 0.173 acres | $205,000 Apr 2010 | $3,569 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |