Contra Costa County property records for 11 addresses on Island Ct, Walnut Creek, CA · Last verified October 2026
| Properties | 11 |
|---|---|
| Median Sale Price | $700,000 |
| Deeds and Mortgages on File | 15 |
| Median Price per Sqft | $320 |
| Owner Occupied | 91% |
| Median Annual Tax Bill | $9,531 |
| Median Year Built | 1972 |
| Median Ownership Tenure | 14 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
10 Island Ct |
3 bd · 2 ba · 1,665 sqft built 1972 · 0.188 acres | $1,370,000 Apr 2021 | $15,913 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
30 Island Ct |
6 bd · 4 ba · 2,282 sqft built 1971 · 0.182 acres | $770,000 Jul 2008 | $8,825 2025 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
35 Island Ct |
5 bd · 3 ba · 2,204 sqft built 1978 · 0.188 acres | $3,967 2025 | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
45 Island Ct |
5 bd · 3.5 ba · 2,187 sqft built 1972 · 0.188 acres | $750,000 May 2022 | $16,261 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
50 Island Ct |
4 bd · 2 ba · 2,175 sqft built 1971 · 0.183 acres | $101,000 Dec 1985 | $5,719 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
75 Island Ct |
5 bd · 3.5 ba · 2,187 sqft built 1972 · 0.188 acres | $700,000 Jun 2013 | $11,099 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
80 Island Ct |
5 bd · 3 ba · 2,224 sqft built 1971 · 0.19 acres | $5,285 2025 | Assessor + 2 Documents Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
85 Island Ct |
4 bd · 3.5 ba · 2,187 sqft built 1972 · 0.188 acres | $350,000 Oct 2019 | $8,541 2025 | Assessor + 3 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
90 Island Ct |
5 bd · 3.5 ba · 2,170 sqft built 1972 · 0.202 acres | $600,000 Mar 2012 | $9,531 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
105 Island Ct |
5 bd · 3.5 ba · 2,447 sqft built 1972 · 0.197 acres | $555,000 Jun 2001 | $10,359 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
110 Island Ct |
5 bd · 3 ba · 2,172 sqft built 1972 · 0.22 acres | $155,500 Jul 2004 | $10,837 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |