Suffolk County, Brookhaven Town, Islip Town and Babylon Town property records for 46 addresses on Walnut St, Lake Grove, NY · Last verified October 2026
| Properties | 46 |
|---|---|
| Median Sale Price | $650,000 |
| Deeds and Mortgages on File | 34 |
| Median Price per Sqft | $310 |
| Owner Occupied | 85% |
| Median Annual Tax Bill | $9,257 |
| Median Year Built | 1968 |
| Median Ownership Tenure | 13 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1 Walnut St |
3 bd · 1 ba · 1,364 sqft built 1950 · 0.189 acres | $7,777 2024 | Assessor + 2 Documents Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
8 Walnut St |
2 bd · 1 ba · 664 sqft built 1940 · 0.139 acres | $203,500 Jan 2012 | $4,291 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
9 Walnut St |
5 bd · 2 ba · 2,566 sqft built 1958 · 0.539 acres | $13,693 2024 | Assessor + 2 Documents Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
10 Walnut St |
3 bd · 2 ba · 1,550 sqft built 1953 · 0.18 acres | $95,000 Aug 1998 | $9,084 2024 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
11 Walnut St |
0.1 acres | Assessor Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
12 Walnut St |
0.1 acres | Assessor Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
13 Walnut St |
1.5 ba · 1,851 sqft built 1965 · 0.183 acres | $142,000 Dec 2014 | $9,257 2024 | Assessor Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
14 Walnut St |
4 bd · 1 ba · 1,320 sqft built 1935 · 0.269 acres | $132,000 Apr 1999 | $4,744 2024 | Assessor + 2 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
16 Walnut St |
0.18 acres | $170,000 Oct 1999 | $10,043 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20 Walnut St |
3 bd · 1 ba · 880 sqft built 1960 · 0.139 acres | — Mar 1999 | $10,845 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
32 Walnut St |
3 bd · 1 ba · 1,358 sqft built 1960 · 0.089 acres | $7,603 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
38 Walnut St |
3 bd · 1 ba · 1,560 sqft built 1950 · 0.18 acres | $11,300,000 Jan 1995 | $5,337 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
42 Walnut St |
2 bd · 1 ba · 636 sqft built 1930 · 0.13 acres | $295,000 Nov 2005 | $4,639 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
44 Walnut St |
2 bd · 1 ba · 662 sqft built 1930 · 0.089 acres | $2,326 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
50 Walnut St |
2 bd · 1 ba · 804 sqft built 1940 · 0.18 acres | $300,000 Sep 2015 | $6,714 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
52 Walnut St |
3 bd · 1 ba · 1,698 sqft built 1975 · 0.18 acres | $9,607 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
53 Walnut St |
4 bd · 2 ba · 1,920 sqft built 1960 · 0.45 acres | $187,500 Sep 1998 | $10,043 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
54 Walnut St |
3 bd · 1 ba · 1,482 sqft built 1976 · 0.089 acres | $323,500 Jul 2004 | $7,951 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
56 Walnut St |
1 bd · 1 ba · 720 sqft built 1950 · 0.089 acres | $248,000 Jul 2016 | $5,668 2024 | Assessor + 3 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
58 Walnut St |
3 bd · 1 ba · 800 sqft built 1975 · 0.089 acres | $480,000 May 2024 | $7,411 2024 | Assessor + 2 Documents Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
59 Walnut St |
3 bd · 1 ba · 1,350 sqft built 1964 · 0.38 acres | $290,000 Apr 2016 | $8,945 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
69 Walnut St |
4 bd · 2 ba · 2,514 sqft built 1970 · 1.48 acres | $177,000 Feb 1998 | $12,309 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
76 Walnut St |
4 bd · 2 ba · 1,886 sqft built 1984 · 0.269 acres | $10,043 2024 | Assessor + 1 Document Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
78 Walnut St |
3 bd · 1 ba · 1,692 sqft built 1960 · 0.18 acres | $8,823 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
83 Walnut St |
4 bd · 2 ba · 2,025 sqft built 1969 · 1.4 acres | $12,135 2024 | Assessor + 1 Document Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
84 Walnut St |
2 bd · 1 ba · 768 sqft built 1955 · 0.11 acres | $726 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
89 Walnut St |
4 bd · 2 ba · 2,427 sqft built 1969 · 0.45 acres | $840,000 Apr 2026 | $11,263 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
90 Walnut St |
2 bd · 1 ba · 844 sqft built 1960 · 0.139 acres | $285,000 Dec 2015 | $6,888 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
92 Walnut St |
3 bd · 1 ba · 1,584 sqft built 1957 · 0.13 acres | $147,000 Apr 1994 | $6,975 2024 | Assessor + 2 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
93 Walnut St |
3 bd · 2 ba · 1,774 sqft built 1968 · 0.369 acres | — Aug 2011 | $10,671 2024 | Assessor + 2 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
95 Walnut St |
4 bd · 2 ba · 2,174 sqft built 1968 · 0.4 acres | $675,000 Feb 2024 | $10,566 2024 | Assessor + 4 Documents Updated Aug 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
97 Walnut St |
4 bd · 2 ba · 1,956 sqft built 1970 · 0.4 acres | $660,000 Nov 2023 | $9,002 2024 | Assessor + 3 Documents Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
98 Walnut St |
3 bd · 1 ba · 1,774 sqft built 1970 · 0.35 acres | $11,089 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
100 Walnut St |
3 bd · 1 ba · 1,774 sqft built 1970 · 0.35 acres | $4,847 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
101 Walnut St |
4 bd · 2 ba · 2,060 sqft built 1969 · 0.35 acres | $454,000 Aug 2018 | $12,292 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
102 Walnut St |
4 bd · 2 ba · 2,346 sqft built 1968 · 0.35 acres | $460,000 Aug 2019 | $12,292 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
104 Walnut St |
4 bd · 2 ba · 2,372 sqft built 1969 · 0.35 acres | $399,000 Jan 2013 | $11,612 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
105 Walnut St |
4 bd · 2 ba · 2,460 sqft built 1970 · 0.4 acres | $458,000 Sep 2007 | $12,832 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
106 Walnut St |
3 bd · 2 ba · 1,844 sqft built 1969 · 0.35 acres | $10,950 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
107 Walnut St |
3 bd · 1 ba · 1,776 sqft built 1969 · 0.35 acres | $410,000 Jul 2013 | $11,438 2024 | Assessor Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
108 Walnut St |
3 bd · 1 ba · 1,792 sqft built 1969 · 0.35 acres | $340,000 Jan 2015 | $7,387 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
110 Walnut St |
3 bd · 1 ba · 2,631 sqft built 1970 · 0.35 acres | $12,832 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
111 Walnut St |
3 bd · 2 ba · 1,832 sqft built 1968 · 0.35 acres | $295,000 Aug 2001 | $10,898 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
112 Walnut St |
3 bd · 2 ba · 1,848 sqft built 1970 · 0.35 acres | $515,000 Jun 2023 | $12,135 2024 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
114 Walnut St |
3 bd · 2 ba · 1,848 sqft built 1970 · 0.35 acres | $8,958 2024 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
115 Walnut St |
0.439 acres | $650,000 Oct 2023 | $2,261 2024 | Assessor + 1 Document Updated Aug 2026 | Owner on File |