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Round Swamp Rd, Old Bethpage, NY Property Records

Nassau County and Oyster Bay Town property records for 44 addresses on Round Swamp Rd, Old Bethpage, NY · Last verified October 2026

Round Swamp Rd Highlights

Properties 44
Median Sale Price $785,000
Deeds and Mortgages on File 45
Median Price per Sqft $337
Owner Occupied 91%
Median Annual Tax Bill $16,217
Median Year Built 1960
Median Ownership Tenure 12 years

Properties on Round Swamp Rd

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

101 Round Swamp Rd, #108

1 bd · 2 ba · 107,826 sqft · built 1985 · 4.27 acres

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

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844 Round Swamp Rd

2 ba · 2,495 sqft · built 1963 · 0.306 acres

Last Sale Tax Bill Prior Sale Owner Records
$725,000Dec 2020 $18,4752025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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875 Round Swamp Rd

3 ba · 2,296 sqft · built 1999 · 0.218 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2010 $18,7152025 Amount on Record Sep 2000 Owner on Record Owner Occupied AssessorUpdated Oct 2026

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879 Round Swamp Rd

3 ba · 2,296 sqft · built 1999 · 0.192 acres

Last Sale Tax Bill Prior Sale Owner Records
$625,000Jul 2017 $21,5042025 Amount on Record Feb 2000 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

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880 Round Swamp Rd

1.5 ba · 1,354 sqft · built 1960 · 0.49 acres

Last Sale Tax Bill Prior Sale Owner Records
$410,000May 2011 $15,3562025 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

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883 Round Swamp Rd

3 ba · 2,296 sqft · built 1999 · 0.202 acres

Last Sale Tax Bill Prior Sale Owner Records
$785,000Dec 2021 $19,4552025 Amount on Record Feb 2005 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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887 Round Swamp Rd

3 ba · 2,296 sqft · built 1998 · 0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
$774,888Nov 2021 $17,7912025 Amount on Record Dec 2000 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

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888 Round Swamp Rd

3 ba · 3,192 sqft · built 1920 · 0.405 acres

Last Sale Tax Bill Prior Sale Owner Records
$720,000Aug 2021 $19,4252025 Amount on Record Aug 2005 2 Owners on Record Assessor + 2 DocumentsUpdated Oct 2026

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890 Round Swamp Rd

2 ba · 1,943 sqft · built 1970 · 0.349 acres

Last Sale Tax Bill Prior Sale Owner Records
$590,000May 2006 $14,9992025 Amount on Record Apr 1999 Owner on Record Assessor + 2 DocumentsUpdated Oct 2026

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891 Round Swamp Rd

3 ba · 2,179 sqft · built 1988 · 0.264 acres

Last Sale Tax Bill Prior Sale Owner Records
$285,000Nov 1999 $14,0382025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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896 Round Swamp Rd

2 ba · 2,418 sqft · built 1977 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$15,2132025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

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900 Round Swamp Rd

2.5 ba · 3,075 sqft · built 1959 · 0.614 acres

Last Sale Tax Bill Prior Sale Owner Records
$962,500Mar 2022 $20,5832025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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902 Round Swamp Rd

3 ba · 2,054 sqft · built 1974 · 0.292 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2006 $7,2982025 Owner on Record Owner Occupied AssessorUpdated Jun 2026

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910 Round Swamp Rd

3 ba · 2,679 sqft · built 1963 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$207,500Oct 1993 $16,9392025 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

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916 Round Swamp Rd

3 ba · 2,938 sqft · built 1954 · 0.42 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,528,000Mar 2025 $22,8432025 Amount on Record Aug 2014 Owner on Record Owner Occupied AssessorUpdated Oct 2026

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926 Round Swamp Rd

23,274 sqft · built 1961 · 2.4 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

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936 Round Swamp Rd

3.5 ba · 1,686 sqft · built 1956 · 0.266 acres

Last Sale Tax Bill Prior Sale Owner Records
$788,000Apr 2021 $17,6732025 Amount on Record Jan 2017 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

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956 Round Swamp Rd

1.5 ba · 1,341 sqft · built 1954 · 0.277 acres

Last Sale Tax Bill Prior Sale Owner Records
$13,3572025 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

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958 Round Swamp Rd

5,466 sqft · built 1958 · 1.83 acres

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

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960 Round Swamp Rd

2 ba · 2,374 sqft · built 1974 · 0.33 acres

Last Sale Tax Bill Prior Sale Owner Records
$17,9992025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

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1090 Round Swamp Rd

2.5 ba · 1,980 sqft · built 1956 · 0.244 acres

Last Sale Tax Bill Prior Sale Owner Records
$425,000Feb 2015 $15,3152025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

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1093 Round Swamp Rd

1.5 ba · 1,899 sqft · built 1974 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$492,500Jun 2018 $15,2372025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

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1095 Round Swamp Rd

1 ba · 1,966 sqft · built 1974 · 0.231 acres

Last Sale Tax Bill Prior Sale Owner Records
$193,000Feb 1997 $15,7752025 —Feb 1996 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

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1096 Round Swamp Rd

2.5 ba · 1,871 sqft · built 1956 · 0.226 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,0222025 Owner on Record Owner Occupied AssessorUpdated Jun 2026

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1102 Round Swamp Rd

2.5 ba · 1,750 sqft · built 1957 · 0.162 acres

Last Sale Tax Bill Prior Sale Owner Records
$536,000Nov 2019 $14,5842025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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1109 Round Swamp Rd

2.5 ba · 3,806 sqft · built 1954 · 0.507 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,250,000Feb 2026 $21,3262025 Amount on Record Dec 2018 2 Owners on Record Assessor + 3 DocumentsUpdated Oct 2026

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1114 Round Swamp Rd

2.5 ba · 1,633 sqft · built 1958 · 0.195 acres

Last Sale Tax Bill Prior Sale Owner Records
$425,000Aug 2003 $15,7422025 Owner on Record AssessorUpdated Jun 2026

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1115 Round Swamp Rd

4 bd · 2.5 ba · 2,574 sqft · built 2007 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$870,000Sep 2015 $26,4352025 Amount on Record Nov 2007 Owner on Record Owner Occupied AssessorUpdated Oct 2026

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1119 Round Swamp Rd

2.5 ba · 2,918 sqft · built 1947 · 0.531 acres

Last Sale Tax Bill Prior Sale Owner Records
$452,000Jul 2007 $10,9602025 Amount on Record Jun 2006 2 Owners on Record Owner Occupied Assessor + 5 DocumentsUpdated Oct 2026

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1120 Round Swamp Rd

2.5 ba · 1,633 sqft · built 1957 · 0.213 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,0642025 Owner on Record Owner Occupied AssessorUpdated Jun 2026

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1188 Round Swamp Rd

1.5 ba · 1,724 sqft · built 1958 · 0.457 acres

Last Sale Tax Bill Prior Sale Owner Records
$420,000Aug 2015 $16,2172025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

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1196 Round Swamp Rd

3 ba · 2,268 sqft · built 1958 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$270,000Apr 2002 $18,6862025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

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1225 Round Swamp Rd

2.5 ba · 2,424 sqft · built 1960 · 0.244 acres

Last Sale Tax Bill Prior Sale Owner Records
$19,1582025 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

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1229 Round Swamp Rd

3 ba · 2,008 sqft · built 1961 · 0.244 acres

Last Sale Tax Bill Prior Sale Owner Records
$725,000Nov 2021 $17,7322025 Amount on Record Feb 1999 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

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1231 Round Swamp Rd

2 ba · 1,660 sqft · built 1963 · 0.238 acres

Last Sale Tax Bill Prior Sale Owner Records
$222,000Aug 1998 $14,7622025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

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1241 Round Swamp Rd

2 ba · 1,947 sqft · built 1958 · 0.26 acres

Last Sale Tax Bill Prior Sale Owner Records
$300,000Jun 2000 Owner on Record Owner Occupied AssessorUpdated Jun 2026

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1251 Round Swamp Rd

1 ba · 1,505 sqft · built 1940 · 0.287 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,2472025 Owner on Record Owner Occupied AssessorUpdated Jun 2026

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1257 Round Swamp Rd

2 ba · 1,682 sqft · built 1959 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$188,000Jun 1994 $16,7642025 Owner on Record Owner Occupied AssessorUpdated Jun 2026

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1259 Round Swamp Rd

2.5 ba · 1,922 sqft · built 1960 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$424,000Nov 2009 $17,6732025 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

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1261 Round Swamp Rd

2 ba · 1,922 sqft · built 1959 · 0.226 acres

Last Sale Tax Bill Prior Sale Owner Records
$235,000Jun 1993 $15,7752025 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

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1457 Round Swamp Rd

2 ba · 1,716 sqft · built 1961 · 0.24 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1995 $15,9232025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

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1461 Round Swamp Rd

4 bd · 3.5 ba · 1,926 sqft · built 1960 · 0.276 acres

Last Sale Tax Bill Prior Sale Owner Records
$554,000Jun 2014 $17,1142025 Amount on Record Jan 2003 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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1485 Round Swamp Rd

2 ba · 1,700 sqft · built 1961 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,6782025 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

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1487 Round Swamp Rd

2 ba · 1,679 sqft · built 1961 · 0.249 acres

Last Sale Tax Bill Prior Sale Owner Records
$443,500Sep 2018 $16,1592025 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

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