Middlesex County and Woodbridge Township property records for 67 addresses on William St, South River, NJ · Last verified October 2026
| Properties | 67 |
|---|---|
| Median Sale Price | $460,000 |
| Deeds and Mortgages on File | 55 |
| Median Price per Sqft | $227 |
| Owner Occupied | 51% |
| Median Annual Tax Bill | $6,889 |
| Median Year Built | 1921 |
| Median Ownership Tenure | 9 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2 William St |
832 sqft built 1921 · 0.065 acres | $83,000 Oct 1999 | $4,230 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4 William St |
2,478 sqft built 1904 · 0.172 acres | $390,000 Apr 2021 | $8,031 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6 William St |
4,740 sqft built 1946 · 0.086 acres | $60,000 Jun 1988 | $6,902 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
8 William St |
1,197 sqft built 2020 · 0.057 acres | $96,000 Jul 1991 | $8,319 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
9 William St |
1,008 sqft built 1926 · 0.086 acres | $135,000 Aug 2015 | $5,607 2025 | Assessor Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
10 William St |
1,450 sqft built 1901 · 0.114 acres | $330,000 Sep 2024 | $6,664 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
11 William St |
1,117 sqft built 1926 · 0.098 acres | $126,000 Dec 2000 | $5,140 2025 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
12 William St |
1,460 sqft built 1916 · 0.068 acres | $346,250 Aug 2019 | $8,175 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
13 William St |
1,346 sqft built 1906 · 0.091 acres | $5,680 2025 | Assessor + 2 Documents Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
14 William St |
1,160 sqft built 1921 · 0.045 acres | $4,996 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
16 William St |
3,700 sqft built 1920 · 0.05 acres | $135,000 Nov 2019 | $6,411 2025 | Assessor + 4 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
17 William St |
1,519 sqft built 1916 · 0.107 acres | $230,000 Oct 2004 | $5,909 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
18 William St |
1,885 sqft built 1911 · 0.064 acres | $197,500 Nov 2015 | $6,085 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
19 William St |
1,114 sqft built 1916 · 0.091 acres | $86,000 Jun 2019 | $5,317 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20 William St |
3,565 sqft built 1907 · 0.133 acres | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21 William St |
2,710 sqft built 1926 · 0.091 acres | $200,000 Feb 2016 | $7,620 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
22 William St |
6,207 sqft 0.229 acres | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
23 William St |
1,858 sqft built 1911 · 0.091 acres | $285,500 Feb 2016 | $8,541 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
27 William St |
1,457 sqft built 1906 · 0.091 acres | — Oct 2015 | $5,506 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
29 William St |
1,988 sqft built 1906 · 0.091 acres | $350,000 Jun 2019 | $8,087 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
31, #33-35 William St |
6,081 sqft built 1920 · 0.135 acres | $13,236 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
34 William St |
0.114 acres | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
36 William St |
0.114 acres | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
37 William St |
2,014 sqft built 1926 · 0.123 acres | $325,000 Apr 2007 | $7,834 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
38 William St |
0.114 acres | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
39 William St |
1,521 sqft built 1950 · 0.102 acres | $95,000 Mar 2013 | $7,057 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
40 William St |
1,710 sqft built 1921 · 0.249 acres | $6,889 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
42 William St |
2,560 sqft built 2018 · 0.153 acres | $230,000 Sep 2010 | $9,387 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
44 William St |
1,504 sqft built 1906 · 0.114 acres | $136,250 May 2008 | $6,536 2025 | Assessor Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
51 William St |
956 sqft built 1951 · 0.073 acres | $127,000 Oct 2017 | $5,597 2025 | Assessor + 4 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
53 William St |
built 1921 · 0.08 acres | $231,002 Oct 2018 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
55 William St |
4,466 sqft built 1916 · 0.183 acres | $325,000 Nov 2002 | $11,431 2025 | Assessor + 2 Documents Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
86 William St |
2,902 sqft built 1901 · 0.215 acres | $8,930 2025 | Assessor Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
89 William St |
1,324 sqft built 1925 · 0.114 acres | $6,075 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
90 William St |
1,362 sqft built 1911 · 0.145 acres | $295,000 Feb 2024 | $5,640 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
91 William St |
1,268 sqft built 1934 · 0.114 acres | $5,818 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
94 William St |
1,339 sqft built 1951 · 0.145 acres | $131,000 May 1996 | $6,224 2025 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
98 William St |
2,114 sqft built 1926 · 0.145 acres | $599,900 May 2026 | $8,092 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
99 William St |
2,220 sqft built 2002 · 0.068 acres | $707,000 Oct 2025 | $10,484 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
102 William St |
1,382 sqft built 1921 · 0.145 acres | $15,000 Nov 2016 | $6,459 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
103 William St |
1,340 sqft built 1921 · 0.103 acres | $225,000 Nov 2009 | $5,586 2025 | Assessor + 4 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
104 William St |
2,208 sqft built 1941 · 0.117 acres | $385,000 Apr 2020 | $9,827 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
107 William St |
1,178 sqft built 1921 · 0.114 acres | $440,000 Oct 2024 | $5,613 2025 | Assessor Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
108 William St |
1,421 sqft built 1926 · 0.117 acres | $469,900 Aug 2025 | $6,558 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
111 William St |
986 sqft built 1921 · 0.172 acres | — Feb 2005 | $4,978 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
115 William St |
2,350 sqft built 1916 · 0.114 acres | $7,031 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
117 William St |
0.067 acres | $2,504 2025 | Assessor Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
118 William St |
1,254 sqft built 1926 · 0.117 acres | $460,000 Apr 2023 | $7,182 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
122 William St |
1,314 sqft built 1926 · 0.117 acres | $119,000 Mar 2015 | $5,971 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
124 William St |
1,920 sqft built 1926 · 0.174 acres | $495,000 Sep 2025 | $12,091 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
127 William St |
4,556 sqft built 1960 · 1.8 acres | $125,000 May 2026 | $13,548 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
129 William St |
1,280 sqft built 1950 · 0.114 acres | $162,750 Feb 2016 | $5,170 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
131 William St |
1,289 sqft built 1946 · 0.114 acres | $5,471 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
132 William St |
2,000 sqft 0.394 acres | $6,403 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
133 William St |
1,682 sqft built 1944 · 0.12 acres | $6,923 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
135 William St |
1,428 sqft built 1951 · 0.105 acres | $99,750 Dec 2016 | $6,157 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
139 William St |
4,632 sqft 1.51 acres | $12,462 2025 | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
143 William St |
3,600 sqft built 1940 · 0.229 acres | $356,000 Jun 2021 | $7,748 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
161 William St |
built 1900 · 3.05 acres | $7,468 2025 | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
190 William St |
10,512 sqft 0.849 acres | $1,300,000 Jul 2025 | $22,348 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
196 William St |
0.391 acres | $141,000 Oct 2025 | $2,832 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
200 William St |
1,819 sqft built 1911 · 1.16 acres | $7,980 2025 | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
200, #B William St |
1,761 sqft built 1911 · 1.36 acres | — Sep 2019 | $9,147 2025 | Assessor + 2 Documents Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
203 William St |
4,500 sqft built 1972 · 0.719 acres | $300,000 Jul 2012 | $9,518 2025 | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
209 William St |
1.23 acres | $575,000 Jan 2023 | $3,283 2025 | Assessor + 3 Documents Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
211 William St |
4,800 sqft 0.743 acres | $11,559 2025 | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
330 William St |
25,224 sqft 4.6 acres | $3,950,000 Jan 2022 | $50,377 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File |