Alameda County property records for 33 addresses on Sunnyslope Ave, Castro Valley, CA · Last verified October 2026
| Properties | 33 |
|---|---|
| Median Sale Price | $1,205,000 |
| Deeds and Mortgages on File | 47 |
| Median Price per Sqft | $777 |
| Owner Occupied | 76% |
| Median Annual Tax Bill | $11,938 |
| Median Year Built | 1963 |
| Median Ownership Tenure | 15 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6016 Sunnyslope Ave |
4 bd · 1.5 ba · 2,187 sqft built 1964 · 14.6 acres | $510,000 Aug 1998 | $9,729 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6146 Sunnyslope Ave |
1.47 acres | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6393 Sunnyslope Ave |
0.914 acres | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6413 Sunnyslope Ave |
4.31 acres | $382,500 Dec 2017 | $5,204 2025 | Assessor + 1 Document Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6421 Sunnyslope Ave |
3 bd · 4 ba · 4,183 sqft built 1962 · 5.35 acres | $587,000 Nov 2003 | $18,585 2025 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6429 Sunnyslope Ave |
5 bd · 3 ba · 3,538 sqft built 1964 · 1.95 acres | $775,000 Dec 2000 | $13,973 2025 | Assessor + 3 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6430 Sunnyslope Ave |
0.988 acres | Assessor Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6443 Sunnyslope Ave |
4 bd · 3 ba · 3,510 sqft built 2003 · 3 acres | $450,000 Oct 2001 | $17,683 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6457 Sunnyslope Ave |
3 bd · 2 ba · 2,196 sqft built 1937 · 1.23 acres | $740,000 Jan 2013 | $10,945 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6458 Sunnyslope Ave |
5 bd · 2 ba · 2,512 sqft built 1942 · 11.7 acres | $700,000 Apr 2011 | $10,796 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6475 Sunnyslope Ave |
3 bd · 2.5 ba · 1,590 sqft built 1963 · 1.08 acres | $1,052,000 Jul 2018 | $14,123 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6481 Sunnyslope Ave |
3 bd · 3 ba · 2,445 sqft built 1991 · 0.474 acres | $1,900,000 Jun 2026 | $8,073 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6553 Sunnyslope Ave |
4 bd · 2.5 ba · 2,406 sqft built 1964 · 1.06 acres | $950,000 Apr 2005 | $14,255 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6560 Sunnyslope Ave |
1,331 sqft built 1924 · 11.2 acres | $710,000 Apr 2015 | $10,147 2025 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6565 Sunnyslope Ave |
4 bd · 2.5 ba · 2,460 sqft built 1976 · 1 acre | $1,010,000 Aug 2007 | $15,846 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6581 Sunnyslope Ave |
3 bd · 1 ba · 1,660 sqft built 1965 · 4.05 acres | $390,000 Apr 1996 | $7,875 2025 | Assessor + 2 Documents Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6590 Sunnyslope Ave |
1.28 acres | $631,000 Jan 2022 | $7,966 2025 | Assessor + 2 Documents Updated Oct 2025 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6677 Sunnyslope Ave |
3 bd · 2 ba · 1,840 sqft built 1961 · 1.31 acres | $685,000 Jul 2010 | $6,428 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6688 Sunnyslope Ave |
1,715 sqft built 1962 · 1 acre | $1,225 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6695 Sunnyslope Ave |
3 bd · 2.5 ba · 3,082 sqft built 1962 · 1.31 acres | $1,015,000 May 2017 | $14,513 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6700 Sunnyslope Ave |
3 bd · 3 ba · 2,024 sqft built 1971 · 3 acres | $471,000 May 1994 | $11,044 2025 | Assessor + 1 Document Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6715 Sunnyslope Ave |
1 bd · 1 ba · 1,200 sqft built 1910 · 16.1 acres | $980,000 Oct 2005 | $16,082 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6727 Sunnyslope Ave |
3 bd · 3 ba · 2,954 sqft built 1979 · 0.469 acres | $455,000 Jun 1998 | $8,293 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6733 Sunnyslope Ave |
0.489 acres | $385,000 Nov 2020 | $4,238 2025 | Assessor + 6 Documents Updated Aug 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6739 Sunnyslope Ave |
2,172 sqft built 1970 · 1.11 acres | $124,000 Aug 1984 | $6,185 2025 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6747 Sunnyslope Ave |
4 bd · 2.5 ba · 3,079 sqft built 1962 · 5.61 acres | $1,150,000 Oct 2016 | $15,811 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6770 Sunnyslope Ave |
4 bd · 3 ba · 3,431 sqft built 1949 · 9.05 acres | $765,000 Dec 2009 | $11,938 2025 | Assessor + 1 Document Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6821 Sunnyslope Ave |
3 bd · 2 ba · 1,895 sqft built 1977 · 1.41 acres | $470,000 Aug 1999 | $8,937 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6869 Sunnyslope Ave |
3 bd · 1.5 ba · 1,816 sqft built 1984 · 5.8 acres | $1,575,000 Aug 2024 | $18,867 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6881 Sunnyslope Ave |
4 bd · 3.5 ba · 2,785 sqft built 1964 · 1.4 acres | $1,205,000 Mar 2019 | $16,137 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6893 Sunnyslope Ave |
3 bd · 2 ba · 1,995 sqft built 1960 · 1.4 acres | $1,155,000 Dec 2017 | $14,962 2025 | Assessor + 7 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6917 Sunnyslope Ave |
3 bd · 2 ba · 1,480 sqft built 1962 · 1.59 acres | $825,000 Jan 2015 | $11,974 2025 | Assessor Updated Oct 2025 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6930 Sunnyslope Ave |
2 bd · 2 ba · 1,632 sqft built 1930 · 12.8 acres | $1,670,000 Jun 2025 | $16,659 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |