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 exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day 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