Mill River Rd, Oyster Bay, NY Property Records

Nassau County and Oyster Bay Town property records for 79 addresses on Mill River Rd, Oyster Bay, NY · Last verified October 2026

Mill River Rd Highlights

Properties 79
Median Sale Price $1,000,000
Deeds and Mortgages on File 90
Median Price per Sqft $376
Owner Occupied 86%
Median Annual Tax Bill $16,033
Median Year Built 1931
Median Ownership Tenure 10 years

Properties on Mill River Rd

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

2 Mill River Rd

5 bd · 2.5 ba · 2,700 sqft · built 1935 · 0.672 acres

Last Sale Tax Bill Prior Sale Owner Records
$627,500Feb 2016 $19,5392025 Amount on Record Aug 2006 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

4 Mill River Rd

2 ba · 1,914 sqft · built 1975 · 0.234 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2002 $15,7392025 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

5 Mill River Rd

4 ba · 3,887 sqft · built 1795 · 4.34 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,085,000Apr 2011 $17,9312025 Amount on Record Aug 2005 Owner on Record Owner Occupied AssessorUpdated Oct 2026

9 Mill River Rd

4.5 ba · 4,218 sqft · built 1950 · 10.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$690,000Mar 1995 $30,9152025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

27 Mill River Rd

7 ba · 5,029 sqft · built 1929 · 5.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$997,000Jul 2011 $23,4142025 Amount on Record Aug 1998 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

31 Mill River Rd

3.5 ba · 4,327 sqft · built 1986 · 7.56 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,388,888Feb 2016 $34,5032025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

39 Mill River Rd

8 ba · 5,901 sqft · built 1930 · 2 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,500,000Apr 2024 $20,8012025 Amount on Record Jul 2019 Owner on Record Assessor + 3 DocumentsUpdated Oct 2026

45 Mill River Rd

6.5 ba · 6,386 sqft · built 1924 · 15.5 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,300,000Mar 2023 $34,6662025 Amount on Record Jan 2004 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

47 Mill River Rd

5 ba · 3,237 sqft · built 1938 · 6.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$635,000Oct 1996 $27,1382025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

53 Mill River Rd

10 ba · 17,086 sqft · built 1973 · 33.8 acres

Last Sale Tax Bill Prior Sale Owner Records
$136,6332025 Owner on Record Owner Occupied AssessorUpdated Jun 2026

55 Mill River Rd

13.5 ba · 16,431 sqft · built 1915 · 18.4 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,600,000Sep 2013 $95,1052025 Owner on Record Owner Occupied AssessorUpdated Oct 2026

57 Mill River Rd

8.5 ba · 6,374 sqft · built 1878 · 11 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,300,000Mar 2023 $30,9752025 Amount on Record Jun 1998 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

67 Mill River Rd

4 bd · 7 ba · 5,699 sqft · built 2014 · 2 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,585,300Feb 2018 $27,6252025 Amount on Record Mar 2011 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

75 Mill River Rd

5 bd · 6 ba · 4,599 sqft · built 1961 · 2.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$23,6582025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

80 Mill River Rd

4.5 ba · 5,371 sqft · built 2023 · 2.68 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,500,000Jan 2024 $14,5202025 Amount on Record Sep 2005 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

86 Mill River Rd

1 ba · 1,791 sqft · built 1888 · 0.775 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,125,000May 2006 Amount on Record Dec 1997 Owner on Record Owner Occupied AssessorUpdated Oct 2026

89 Mill River Rd

2.5 ba · 2,848 sqft · built 2023 · 5.33 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Nov 2020 $28,2852025 Amount on Record Sep 2020 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

93 Mill River Rd

7.5 ba · 8,138 sqft · built 1888 · 5 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,500,000Jan 2017 $34,0482025 Amount on Record Aug 2003 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

99 Mill River Rd

2 bd · 5 ba · 4,977 sqft · built 1950 · 5.09 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000Jun 1995 $29,2682025 Owner on Record Assessor + 2 DocumentsUpdated Jun 2026

100 Mill River Rd

4 bd · 3.5 ba · 3,740 sqft · built 2003 · 0.302 acres

Last Sale Tax Bill Prior Sale Owner Records
$990,000Aug 2022 $16,0332025 Amount on Record Dec 2019 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

103 Mill River Rd

built 1900 · 1.01 acres

Last Sale Tax Bill Prior Sale Owner Records
$6992025 Owner on Record Owner Occupied AssessorUpdated Jun 2026

105 Mill River Rd

6 ba · 5,546 sqft · built 1758 · 8.71 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,200,000Aug 2005 $33,3652025 Amount on Record Apr 2002 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

106 Mill River Rd

2.5 ba · 2,147 sqft · built 1863 · 0.285 acres

Last Sale Tax Bill Prior Sale Owner Records
—Mar 2001 $13,4842025 Owner on Record Owner Occupied AssessorUpdated Jun 2026

108 Mill River Rd

2.5 ba · 2,548 sqft · built 2003 · 0.146 acres

Last Sale Tax Bill Prior Sale Owner Records
$643,000Jul 2004 $15,9892025 —Jul 2004 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

110 Mill River Rd

4 bd · 2.5 ba · 2,722 sqft · built 2003 · 0.145 acres

Last Sale Tax Bill Prior Sale Owner Records
$775,000Jan 2021 $14,2682025 Amount on Record Feb 2005 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

111 Mill River Rd

3.5 ba · 2,519 sqft · built 1962 · 2.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,802,000Jun 2026 $8622026 Amount on Record Dec 2023 2 Owners on Record Assessor + 3 DocumentsUpdated Oct 2026

117 Mill River Rd

2 ba · 1,852 sqft · built 1894 · 2 acres

Last Sale Tax Bill Prior Sale Owner Records
$15,2492025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

122 Mill River Rd

2 ba · 1,544 sqft · built 1898 · 0.223 acres

Last Sale Tax Bill Prior Sale Owner Records
$620,000Apr 2024 $9,3062025 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

123 Mill River Rd

3.5 ba · 2,637 sqft · built 1962 · 2 acres

Last Sale Tax Bill Prior Sale Owner Records
$960,000Sep 2016 $17,0082025 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

130 Mill River Rd

2 bd · 1 ba · 1,048 sqft · built 1863 · 0.128 acres

Last Sale Tax Bill Prior Sale Owner Records
$179,000Aug 2012 $8,4502025 —Mar 2007 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

136 Mill River Rd

4 ba · 1,640 sqft · built 1888 · 0.146 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,6742025 Owner on Record Owner Occupied AssessorUpdated Jun 2026

142 Mill River Rd

2 ba · 1,696 sqft · built 1888 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,7822025 Owner on Record Assessor + 1 DocumentUpdated Jun 2026

148 Mill River Rd

2 ba · 2,540 sqft · built 1888 · 0.161 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,4292025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

160 Mill River Rd

2,820 sqft · built 1950 · 0.512 acres

Last Sale Tax Bill Prior Sale Owner Records
$450,000Sep 2010 $17,0622025 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

166 Mill River Rd

1 ba · 1,172 sqft · built 1863 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$295,000Dec 2012 $9,6682025 Owner on Record Owner Occupied AssessorUpdated Oct 2026

167 Mill River Rd

3 ba · 2,720 sqft · built 1950 · 0.19 acres

Last Sale Tax Bill Prior Sale Owner Records
$568,000May 2014 $13,2192025 Amount on Record Oct 1998 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

169 Mill River Rd

3 ba · 1,875 sqft · built 1923 · 0.331 acres

Last Sale Tax Bill Prior Sale Owner Records
$190,000Oct 1994 $14,4042025 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

176 Mill River Rd

1.5 ba · 1,144 sqft · built 1868 · 0.406 acres

Last Sale Tax Bill Prior Sale Owner Records
$425,500Jul 2016 $13,8892025 Amount on Record May 2015 Owner on Record Owner Occupied AssessorUpdated Oct 2026

180 Mill River Rd

3 ba · 2,418 sqft · built 1893 · 0.211 acres

Last Sale Tax Bill Prior Sale Owner Records
$665,000Apr 2022 $14,2932025 —Jun 1998 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

185 Mill River Rd

1 ba · 1,370 sqft · built 1952 · 0.336 acres

Last Sale Tax Bill Prior Sale Owner Records
$340,000Oct 2002 $12,4202025 Amount on Record Jul 2000 Owner on Record Owner Occupied AssessorUpdated Oct 2026

193 Mill River Rd

2.5 ba · 1,777 sqft · built 1923 · 0.212 acres

Last Sale Tax Bill Prior Sale Owner Records
$485,000Dec 2021 $12,8222025 Amount on Record Dec 2020 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

197 Mill River Rd

2.5 ba · 1,779 sqft · built 1908 · 0.235 acres

Last Sale Tax Bill Prior Sale Owner Records
$453,500Feb 2021 $11,6452025 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

203 Mill River Rd

1 ba · 1,332 sqft · built 1898 · 0.276 acres

Last Sale Tax Bill Prior Sale Owner Records
$575,000Jul 2006 $13,0182025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

207 Mill River Rd

3 ba · 1,720 sqft · built 1931 · 0.085 acres

Last Sale Tax Bill Prior Sale Owner Records
$510,000Oct 2005 $11,0322025 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

209 Mill River Rd

2.5 ba · 2,376 sqft · built 1987 · 0.135 acres

Last Sale Tax Bill Prior Sale Owner Records
$200,000Apr 1998 $7,4242025 Owner on Record Owner Occupied AssessorUpdated Jun 2026

211 Mill River Rd

4.5 ba · 2,156 sqft · built 1987 · 0.135 acres

Last Sale Tax Bill Prior Sale Owner Records
$575,000Jul 2017 $14,6362025 Amount on Record Oct 1998 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

213 Mill River Rd

3 ba · 2,115 sqft · built 1923 · 0.199 acres

Last Sale Tax Bill Prior Sale Owner Records
$540,500Aug 2004 $15,1752025 Amount on Record Feb 2004 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

219 Mill River Rd

1.5 ba · 1,269 sqft · built 1918 · 0.401 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,000Jun 2003 $10,1792025 Amount on Record Oct 2001 Owner on Record Owner Occupied AssessorUpdated Jun 2026

221 Mill River Rd, #227

2 bd · 1 ba · 6,424 sqft · built 1913 · 0.325 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2013 $24,7812025 Amount on Record Nov 2005 Owner on Record AssessorUpdated Oct 2026

243 Mill River Rd

1 ba · 650 sqft · built 1920 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$210,000Jul 2014 $4,0992025 Amount on Record Mar 2008 Owner on Record Owner Occupied AssessorUpdated Oct 2026

245 Mill River Rd

1 ba · 640 sqft · built 1920 · 0.097 acres

Last Sale Tax Bill Prior Sale Owner Records
$350,200Aug 2006 $8,0462025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

247 Mill River Rd

2 ba · 1,488 sqft · built 1920 · 0.097 acres

Last Sale Tax Bill Prior Sale Owner Records
$457,500Dec 2020 $11,1062025 Amount on Record May 2018 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

249 Mill River Rd

3.5 ba · 1,416 sqft · built 1920 · 0.102 acres

Last Sale Tax Bill Prior Sale Owner Records
$379,000Aug 2019 $8,3842025 Amount on Record Nov 2012 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

251 Mill River Rd

1 ba · 802 sqft · built 1920 · 0.097 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,6052025 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

253 Mill River Rd

2 ba · 1,140 sqft · built 1920 · 0.087 acres

Last Sale Tax Bill Prior Sale Owner Records
$220,000Mar 2015 $8,9482025 Amount on Record Dec 2011 Owner on Record Owner Occupied AssessorUpdated Oct 2026

313 Mill River Rd

5 ba · 6,283 sqft · built 1914 · 2.95 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,700,000Oct 2017 $27,2352025 Amount on Record Nov 2006 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

321 Mill River Rd

2 ba · 2,135 sqft · built 1963 · 2 acres

Last Sale Tax Bill Prior Sale Owner Records
$985,000Mar 2014 $15,8792025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

339 Mill River Rd

4 ba · 5,617 sqft · built 1838 · 3.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$20,7962025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

345 Mill River Rd

6.5 ba · 4,593 sqft · built 1972 · 2.08 acres

Last Sale Tax Bill Prior Sale Owner Records
$23,5442025 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

351 Mill River Rd

4.5 ba · 4,343 sqft · built 1960 · 2 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,635,000Sep 2021 $25,4912025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

363 Mill River Rd

2.5 ba · 2,233 sqft · built 1928 · 2.51 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,882,500Sep 2018 $14,1132025 Amount on Record May 2007 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

375 Mill River Rd

8.5 ba · 12,039 sqft · built 2002 · 4 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,000,000Feb 2014 $60,5992025 —May 2007 Owner on Record Owner Occupied AssessorUpdated Jun 2026

381 Mill River Rd

2 ba · 1,656 sqft · built 1936 · 1.03 acres

Last Sale Tax Bill Prior Sale Owner Records
$720,000Feb 2020 $11,0812025 Amount on Record Mar 2017 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

387 Mill River Rd

5 bd · 4.5 ba · 3,726 sqft · built 1918 · 3.06 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,550,000Aug 2012 $22,2432025 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

391 Mill River Rd

3.5 ba · 3,924 sqft · built 1947 · 2.49 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,100,000Oct 2016 $28,8522025 Amount on Record Nov 2009 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

395 Mill River Rd

3 ba · 1,950 sqft · built 1941 · 2.44 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,175,000Jan 2024 $17,5932025 Amount on Record May 2002 Owner on Record Assessor + 3 DocumentsUpdated Oct 2026

405 Mill River Rd

3 ba · 1,991 sqft · built 1936 · 1 acres

Last Sale Tax Bill Prior Sale Owner Records
$599,000Nov 2009 $12,1032025 Amount on Record Sep 2005 Owner on Record Owner Occupied AssessorUpdated Oct 2026

411 Mill River Rd

7 ba · 7,883 sqft · built 1936 · 7.98 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

417 Mill River Rd

7.5 ba · 6,240 sqft · built 1938 · 2.38 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,000,000Dec 2022 $30,1062025 Amount on Record Feb 2020 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

421 Mill River Rd

3 ba · 2,173 sqft · built 1928 · 1.04 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,070,000Nov 2017 $19,1412025 Amount on Record Sep 1995 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

422 Mill River Rd

3.5 ba · 4,210 sqft · built 1987 · 0.969 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,400,000Jun 2026 $21,7732025 Amount on Record Sep 2022 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2026

423 Mill River Rd

4.5 ba · 3,846 sqft · built 1964 · 2.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$690,000Jul 2019 $15,1332025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

424 Mill River Rd

5.5 ba · 4,187 sqft · built 1987 · 0.939 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,100,000Apr 2002 $21,4942025 Amount on Record Jan 2000 Owner on Record Owner Occupied AssessorUpdated Oct 2026

425 Mill River Rd

2.5 ba · 3,281 sqft · built 1984 · 1.02 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,500,000Apr 2022 $24,8042025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

426 Mill River Rd

3.5 ba · 3,474 sqft · built 1987 · 1 acres

Last Sale Tax Bill Prior Sale Owner Records
$18,6632025 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

427 Mill River Rd

5.5 ba · 3,709 sqft · built 1996 · 1.14 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000May 2022 $21,5542025 Amount on Record Nov 2020 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

429 Mill River Rd

4.5 ba · 3,987 sqft · built 1878 · 4.83 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,425,000Sep 2017 $38,8692025 Amount on Record Jul 1997 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

435 Mill River Rd

3 ba · 3,420 sqft · built 1984 · 1.01 acres

Last Sale Tax Bill Prior Sale Owner Records
$19,2322025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

441 Mill River Rd

4.5 ba · 5,628 sqft · built 2023 · 0.65 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,900,000Apr 2023 $8,4942025 Amount on Record Apr 2021 Owner on Record Assessor + 4 DocumentsUpdated Oct 2026

Property Records in Nearby Streets