Alameda County property records for 29 addresses on E Castro Valley Blvd, Castro Valley, CA · Last verified October 2026
| Properties | 29 |
|---|---|
| Median Sale Price | $950,000 |
| Deeds and Mortgages on File | 44 |
| Median Price per Sqft | $403 |
| Owner Occupied | 34% |
| Median Annual Tax Bill | $11,945 |
| Median Year Built | 1966 |
| Median Ownership Tenure | 8 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3300 E Castro Valley Blvd |
2 ba · 15,785 sqft built 1990 · 1.47 acres | $5,750,000 Nov 2022 | $91,528 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3700 E Castro Valley Blvd |
3,416 sqft built 1953 · 0.199 acres | $805,000 May 2021 | $11,945 2025 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3789 E Castro Valley Blvd |
0.654 acres | $24,000,000 Mar 2024 | $2,105 2023 | Assessor + 3 Documents Updated May 2024 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3797 E Castro Valley Blvd |
0.489 acres | Assessor Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3809 E Castro Valley Blvd |
0.341 acres | Assessor Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3812 E Castro Valley Blvd |
4 bd · 2 ba · 2,490 sqft built 1933 · 0.203 acres | $736,000 Jul 2005 | $13,573 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3815 E Castro Valley Blvd |
56,410 sqft built 1990 · 5.01 acres | — Apr 2001 | $297,671 2025 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3928 E Castro Valley Blvd |
20 ba · 13,426 sqft built 1991 · 0.831 acres | $1,450,000 Feb 2005 | $43,112 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3937 E Castro Valley Blvd |
1.06 acres | $26,879 2025 | Assessor Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3954 E Castro Valley Blvd |
9,758 sqft built 2004 · 1.21 acres | $2,650,000 Nov 2015 | $56,349 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4000 E Castro Valley Blvd |
26,020 sqft built 1970 · 5.26 acres | $5,102 2025 | Assessor Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4008 E Castro Valley Blvd |
1.97 acres | $1,388 2025 | Assessor Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4088 E Castro Valley Blvd |
4 bd · 2.5 ba · 2,175 sqft built 1973 · 0.223 acres | $2,545 2025 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4092 E Castro Valley Blvd |
3 bd · 2.5 ba · 2,354 sqft built 1972 · 0.213 acres | $950,000 Apr 2020 | $13,129 2025 | Assessor + 3 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4096 E Castro Valley Blvd |
0.431 acres | Assessor + 2 Documents Updated Oct 2023 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4343 E Castro Valley Blvd |
5 bd · 4.5 ba · 3,443 sqft built 1966 · 0.41 acres | $1,392,000 Jul 2019 | $18,750 2025 | Assessor + 3 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4367 E Castro Valley Blvd |
1,156 sqft built 1934 · 1.17 acres | $3,225 2025 | Assessor + 1 Document Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4455 E Castro Valley Blvd |
3 bd · 2 ba · 1,540 sqft built 1963 · 0.725 acres | $835,000 Feb 2018 | $11,998 2025 | Assessor + 4 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
5933 E Castro Valley Blvd |
1,228 sqft built 1925 · 1.96 acres | $825,000 Mar 2021 | $8,900 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
5939 E Castro Valley Blvd |
3 bd · 1 ba · 1,390 sqft built 1900 · 1.75 acres | $350,000 Aug 2024 | $4,189 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
5949 E Castro Valley Blvd |
2 bd · 2 ba · 976 sqft built 1928 · 1.5 acres | $549,000 Dec 2015 | $7,851 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
5957 E Castro Valley Blvd |
5 bd · 3 ba · 2,208 sqft built 1952 · 2.8 acres | $750,000 Oct 2017 | $10,695 2025 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6015 E Castro Valley Blvd |
4 bd · 3 ba · 2,224 sqft built 1925 · 1.5 acres | $475,000 Jun 2016 | $8,437 2025 | Assessor + 5 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6037 E Castro Valley Blvd |
740 sqft built 1924 · 12.8 acres | $305,000 Sep 2020 | $3,988 2025 | Assessor + 4 Documents Updated Sep 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6127 E Castro Valley Blvd |
8,125 sqft built 1969 · 3.42 acres | — Dec 1989 | $19,914 2025 | Assessor Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6161 E Castro Valley Blvd |
3 bd · 2 ba · 1,548 sqft built 1967 · 4.15 acres | $877,000 Aug 2013 | $12,864 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6301 E Castro Valley Blvd |
2 bd · 2.5 ba · 2,168 sqft built 1967 · 0.513 acres | $1,015,000 Jul 2019 | $13,362 2025 | Assessor + 4 Documents Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6537 E Castro Valley Blvd |
1.38 acres | $250,000 Jan 2018 | $3,416 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
7503 E Castro Valley Blvd |
0.5 acres | $1,550,000 Oct 2025 | $2,408 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File |