William St, Greenwich, CT Property Records

Greenwich Town property records for 28 addresses on William St, Greenwich, CT · Last verified August 2026

William St Highlights

Properties 28
Median Sale Price $960,000
Deeds and Mortgages on File 16
Median Price per Sqft $534
Owner Occupied 36%
Median Annual Tax Bill $8,634
Median Year Built 1900
Median Ownership Tenure 19 years

Properties on William St

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

11 William St

3 bd · 2 ba · 2,027 sqft · built 1899 · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,010,000Jul 2007 Amount on Record Mar 2006 Owner on Record AssessorUpdated Jul 2026

15 William St

3 bd · 2 ba · 2,178 sqft · built 1900 · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,010,000Jul 2007 $9,5262025 Amount on Record Mar 2006 Owner on Record AssessorUpdated Jul 2026

16 William St

2 bd · 1 ba · 1,069 sqft · built 1900 · 0.06 acres

Last Sale Tax Bill Prior Sale Owner Records
$56,250May 1997 $3,2442025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

19 William St

3 bd · 2 ba · 1,492 sqft · built 1900 · 0.269 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,010,000Jul 2007 Owner on Record AssessorUpdated Jul 2026

23 William St

0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on Record AssessorUpdated Jul 2026

27 William St

4 bd · 2 ba · 2,074 sqft · built 1850 · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,200,000Jan 2006 $10,2152025 Owner on Record AssessorUpdated Jul 2026

28 William St

2 bd · 1.5 ba · 875 sqft · built 1900 · 0.06 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Aug 1998 Owner on Record AssessorUpdated Jul 2026

33 William St

4 bd · 3 ba · 3,840 sqft · built 1986 · 0.269 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,800,000Jul 2007 —Jan 2007 Owner on Record AssessorUpdated Jul 2026

35 William St

2 bd · 3 ba · 1,480 sqft · built 1900 · 0.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$850,000Jul 2007 $8,2472025 —Jan 2007 Owner on Record AssessorUpdated Jul 2026

37 William St

4 bd · 2 ba · 1,360 sqft · built 1900 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$850,000Mar 2007 $8,3742025 Amount on Record Feb 2000 Owner on Record AssessorUpdated Jul 2026

41 William St

4,161 sqft · built 1930 · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$610,000Aug 1998 $12,5992025 2 Owners on Record AssessorUpdated Jul 2026

45 William St, #A

3 bd · 2.5 ba · 2,032 sqft · built 1868

Last Sale Tax Bill Prior Sale Owner Records
$1,191,552Mar 2022 $7,7652025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

45 William St, #B

3 bd · 3.5 ba · 3,058 sqft · built 2005 · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,450,000Jul 2009 $10,1282025 Amount on Record Aug 2006 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

49 William St, #A

2 bd · 3.5 ba · 2,516 sqft · built 1900

Last Sale Tax Bill Prior Sale Owner Records
$944,000Sep 2020 $8,7622025 —Dec 2009 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

49 William St, #B

2 bd · 3 ba · 2,174 sqft · built 1900 · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
$960,000Jan 2010 $7,3542025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

53 William St, #A

2 bd · 2 ba · 1,704 sqft · built 1915

Last Sale Tax Bill Prior Sale Owner Records
$800,000Dec 2005 $6,3382025 Owner on Record Assessor + 1 DocumentUpdated Aug 2026

53 William St, #B

3 bd · 2 ba · 1,744 sqft · built 1915 · 0.269 acres

Last Sale Tax Bill Prior Sale Owner Records
$710,000Aug 2021 $5,5682025 Amount on Record Apr 2006 2 Owners on Record Assessor + 1 DocumentUpdated Jul 2026

58 William St

2,936 sqft · built 1908 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,8482025 Owner on Record AssessorUpdated Jul 2026

62 William St

2 bd · 1 ba · 1,316 sqft · built 1885 · 0.06 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,7292025 Owner on Record AssessorUpdated Jul 2026

64 William St

5 bd · 1.5 ba · 1,709 sqft · built 1900 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,6342025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

68 William St

3 bd · 1.5 ba · 1,310 sqft · built 1900 · 0.06 acres

Last Sale Tax Bill Prior Sale Owner Records
$515,000Jan 2019 $7,4222025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

69 William St

2 bd · 1 ba · 1,294 sqft · built 1900 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,2452025 Owner on Record AssessorUpdated Jul 2026

70 William St

3 bd · 3 ba · 2,081 sqft · built 1900 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,100,000Jun 2004 $9,0122025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

73 William St

4 bd · 2 ba · 1,404 sqft · built 1900 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$750,000Jun 2014 $7,5342025 Amount on Record Jun 1996 2 Owners on Record Assessor + 1 DocumentUpdated Jul 2026

75 William St

6 bd · 5.5 ba · 3,706 sqft · built 2013 · 0.269 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,675,000Jun 2020 $21,9512025 Amount on Record Oct 2012 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

76 William St

0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,095,000Aug 2002 $10,8352025 Owner on Record AssessorUpdated Jul 2026

79 William St

5 bd · 4.5 ba · 3,250 sqft · built 2012 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,875,000Nov 2012 $16,1392025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

83 William St

4 bd · 4 ba · 2,718 sqft · built 1920 · 0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,0362025 Owner on Record Assessor + 1 DocumentUpdated Jul 2026

Property Records in Nearby Streets