Groton Town property records for 16 addresses on Island Ave, Groton, CT · Last verified October 2026
| Properties | 16 |
|---|---|
| Median Sale Price | $730,000 |
| Deeds and Mortgages on File | 13 |
| Median Price per Sqft | $366 |
| Owner Occupied | 31% |
| Median Annual Tax Bill | $8,836 |
| Median Year Built | 1967 |
| Median Ownership Tenure | 8 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1 Island Ave |
0.1 acres | $1,675,000 Jun 2025 | $6,829 2025 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3 Island Ave |
1 bd · 1 ba · 637 sqft built 1950 · 0.089 acres | $8,700 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4 Island Ave |
4 bd · 3 ba · 4,491 sqft built 1983 · 0.257 acres | $1,855,000 Oct 2025 | $23,740 2025 | Assessor + 2 Documents Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
5 Island Ave |
2 bd · 2 ba · 776 sqft built 1940 · 0.08 acres | $8,323 2025 | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
7 Island Ave |
0.039 acres | $97,000 Nov 2020 | $2,690 2025 | Assessor + 2 Documents Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
8 Island Ave |
4 bd · 3.5 ba · 2,960 sqft built 1989 · 0.119 acres | $950,000 Nov 2020 | $15,119 2025 | Assessor + 2 Documents Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
9 Island Ave |
1 bd · 1 ba · 1,047 sqft built 1950 · 0.08 acres | $8,836 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
11 Island Ave |
2 bd · 2.5 ba · 1,249 sqft built 1987 · 0.08 acres | $458,000 Oct 2016 | $10,297 2025 | Assessor Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
15 Island Ave |
3 bd · 4.5 ba · 3,049 sqft built 1997 · 0.157 acres | $646,300 Apr 2018 | $22,342 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
16 Island Ave |
1 bd · 1 ba · 640 sqft built 1967 · 0.157 acres | $330,000 Jul 2012 | $8,968 2025 | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
17 Island Ave |
3 bd · 1 ba · 960 sqft built 1959 · 0.089 acres | $87,500 Oct 1996 | $3,543 2025 | Assessor Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
19 Island Ave |
2 bd · 1 ba · 899 sqft built 1940 · 0.08 acres | $730,000 Apr 2022 | $8,371 2025 | Assessor + 2 Documents Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20 Island Ave |
3 bd · 2 ba · 1,673 sqft built 1898 · 0.069 acres | $451,000 Sep 2021 | $5,086 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
23 Island Ave |
3 bd · 2.5 ba · 1,642 sqft built 1995 · 0.08 acres | $800,000 Jun 2005 | $17,550 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
24 Island Ave |
3 bd · 2.5 ba · 1,967 sqft built 2013 · 0.08 acres | $515,000 Jan 2006 | $15,237 2025 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
30 Island Ave |
1 ba · 1,528 sqft built 1900 · 0.119 acres | $40,000 Jul 2000 | $1,103 2025 | Assessor Updated Jul 2026 | 2 Owners on File |