Cos Cob Ave, Cos Cob, CT Property Records

Greenwich Town property records for 61 addresses on Cos Cob Ave, Cos Cob, CT · Last verified October 2026

Cos Cob Ave Highlights

Properties 84
Median Sale Price $780,000
Deeds and Mortgages on File 85
Median Price per Sqft $457
Owner Occupied 56%
Median Annual Tax Bill $6,856
Median Year Built 1967
Median Ownership Tenure 14 years

Properties on Cos Cob Ave

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

2 1/2 Cos Cob Ave, #F

3 bd · 2.5 ba · 1,963 sqft · built 2004 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,8742024 Owner on Record AssessorUpdated Jul 2026

2 1/2 Cos Cob Ave, #R

3 bd · 2.5 ba · 2,044 sqft · built 2007

Last Sale Tax Bill Prior Sale Owner Records
$817,500Aug 2007 $6,3202024 Owner on Record Owner Occupied AssessorUpdated Jul 2026

2 Cos Cob Ave, #F

2 bd · 2.5 ba · 1,428 sqft · built 2004 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$285,000Sep 1988 $5,3492024 Owner on Record AssessorUpdated Jul 2026

2 Cos Cob Ave, #R

3 bd · 2.5 ba · 1,596 sqft · built 2004

Last Sale Tax Bill Prior Sale Owner Records
$5,7622024 Owner on Record AssessorUpdated Jul 2026

3 Cos Cob Ave

6 bd · 3 ba · 4,050 sqft · built 1920 · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,0372026 2 Owners on Record AssessorUpdated Oct 2026

4 Cos Cob Ave

4 bd · 3 ba · 2,720 sqft · built 1951 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,530,000Aug 2026 $9,2362026 Amount on Record Aug 2012 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

5 Cos Cob Ave

4 bd · 2.5 ba · 1,883 sqft · built 1920 · 0.069 acres

Last Sale Tax Bill Prior Sale Owner Records
$567,500Apr 2013 $6,5632026 Amount on Record May 2005 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

6 Cos Cob Ave

3 bd · 4.5 ba · 1,994 sqft · built 1951 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,459,000Mar 2025 $9,8822026 Amount on Record Aug 2002 2 Owners on Record Assessor + 4 DocumentsUpdated Oct 2026

7 Cos Cob Ave

5 bd · 4 ba · 2,424 sqft · built 1923 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$707,000Mar 2023 $8,4492026 —Jun 2014 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

11 Cos Cob Ave

7 bd · 3.5 ba · 3,264 sqft · built 1960 · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,6332026 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

13 Cos Cob Ave

6 bd · 3 ba · 2,856 sqft · built 1987 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,2012026 Owner on Record Assessor + 2 DocumentsUpdated Oct 2026

14 Cos Cob Ave

8 bd · 5.5 ba · 4,203 sqft · built 1908 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,490,000Jun 2021 $12,0132026 Amount on Record Oct 2018 2 Owners on Record Owner Occupied Assessor + 4 DocumentsUpdated Oct 2026

15 Cos Cob Ave

5 bd · 3 ba · 2,888 sqft · built 1920 · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,9222026 Owner on Record Owner Occupied AssessorUpdated Oct 2026

19 Cos Cob Ave

4 bd · 2 ba · 1,880 sqft · built 1978 · 0.06 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,8582026 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

22 Cos Cob Ave

2 bd · 3.5 ba · 2,945 sqft · built 1985 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,1912026 Owner on Record Owner Occupied AssessorUpdated Oct 2026

23 Cos Cob Ave

2 bd · 1 ba · 1,398 sqft · built 1923 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,3182026 Owner on Record AssessorUpdated Oct 2026

24 Cos Cob Ave

7 bd · 3 ba · 3,130 sqft · built 1937 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Dec 2009 $8,1712026 2 Owners on Record AssessorUpdated Oct 2026

26 Cos Cob Ave

6 bd · 5 ba · 3,150 sqft · built 1987 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,0942026 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

28 Cos Cob Ave

3 bd · 2 ba · 2,030 sqft · built 1954 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,0862026 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

29 Cos Cob Ave

3 bd · 2 ba · 1,658 sqft · built 1920 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$139,000Sep 2022 $6,7662026 Amount on Record Feb 2019 Owner on Record Assessor + 7 DocumentsUpdated Oct 2026

30 Cos Cob Ave

4 bd · 2 ba · 1,944 sqft · built 1960 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,0362026 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

31 Cos Cob Ave

7 bd · 4 ba · 3,744 sqft · built 1914 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$500,000Nov 2001 $11,5282026 Owner on Record Owner Occupied AssessorUpdated Oct 2026

32 Cos Cob Ave

4 bd · 2 ba · 2,040 sqft · built 1986 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$787,500Jan 2024 $6,7332026 Amount on Record Oct 2005 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

35 Cos Cob Ave

6 bd · 4 ba · 2,600 sqft · built 1920 · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$225,000Jul 1993 $9,1622026 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

36 Cos Cob Ave

4 bd · 1.5 ba · 1,264 sqft · built 1957 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$650,000Jan 2023 $6,0632026 Amount on Record Jan 2005 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

38 Cos Cob Ave

6 bd · 4 ba · 3,094 sqft · built 1990 · 0.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,4472026 2 Owners on Record AssessorUpdated Oct 2026

39 Cos Cob Ave

4 bd · 2.5 ba · 1,536 sqft · built 1963 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$537,500Jan 2002 $9,4792026 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

40B Cos Cob Ave

6 bd · 4.5 ba · 2,830 sqft · built 1990 · 0.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,7722024 2 Owners on Record AssessorUpdated Jul 2026

43 Cos Cob Ave

4 bd · 2 ba · 3,524 sqft · built 1929 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,575,000Sep 2025 $10,3372026 Amount on Record Nov 2012 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

45 Cos Cob Ave

2 bd · 1 ba · 1,056 sqft · built 1996 · 0.039 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Oct 2005 $5,7912026 Owner on Record AssessorUpdated Oct 2026

47 Cos Cob Ave

4 bd · 3 ba · 3,396 sqft · built 1930 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$281,000Jun 1992 $8,9032026 Owner on Record Owner Occupied AssessorUpdated Oct 2026

48 Cos Cob Ave

5 bd · 3 ba · 2,408 sqft · built 1920 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$295,000Feb 2017 $8,7352026 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

49 Cos Cob Ave

4 bd · 2 ba · 1,643 sqft · built 1911 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$475,400Sep 2006 $6,5302026 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

50 Cos Cob Ave

1 bd · 1 ba · 1,170 sqft · built 1930 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,6262026 Owner on Record AssessorUpdated Oct 2026

52 Cos Cob Ave

6 bd · 3 ba · 2,501 sqft · built 1923 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,5822025 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

53 Cos Cob Ave

4 bd · 2 ba · 1,839 sqft · built 1921 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,780Nov 2010 $6,8022025 Amount on Record Jan 2004 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2026

55 Cos Cob Ave

3 bd · 2 ba · 1,762 sqft · built 1960 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$910,000Apr 2026 $7,2512026 2 Owners on Record Assessor + 3 DocumentsUpdated Oct 2026

58 Cos Cob Ave

3 bd · 3 ba · 2,444 sqft · built 1940 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,0182026 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

59 Cos Cob Ave

7 bd · 4 ba · 2,589 sqft · built 1910 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$825,000Aug 2004 $8,0722026 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

60 Cos Cob Ave

6 bd · 4 ba · 2,352 sqft · built 1973 · 0.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$800,000Oct 2015 $8,5832026 —Nov 2009 2 Owners on Record AssessorUpdated Oct 2026

63 Cos Cob Ave

6 bd · 2.5 ba · 2,394 sqft · built 1967 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,2572026 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

66 Cos Cob Ave

6 bd · 6 ba · 5,552 sqft · built 2017 · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$22,7492026 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

67 Cos Cob Ave

4 bd · 3 ba · 2,629 sqft · built 1918 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,300,000Jan 2026 $8,7822026 Amount on Record Jun 2021 Owner on Record Assessor + 2 DocumentsUpdated Oct 2026

68 Cos Cob Ave

8 bd · 5.5 ba · 4,303 sqft · built 1909 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$575,000May 2024 $8,7362025 Owner on Record Assessor + 1 DocumentUpdated Jul 2026

69 Cos Cob Ave

4 bd · 2 ba · 2,130 sqft · built 1921 · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$975,000Dec 2024 $9,6912026 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

70 Cos Cob Ave

4 bd · 2 ba · 1,785 sqft · built 1910 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$594,800Dec 2017 $7,3002026 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

73 Cos Cob Ave

5 bd · 3 ba · 2,805 sqft · built 1920 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$680,000Oct 2012 $8,0202025 Amount on Record Jun 1996 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

74 Cos Cob Ave

6 bd · 4 ba · 4,172 sqft · built 1948 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$800,000Dec 2019 $10,7832026 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

75 Cos Cob Ave

24 units · Built 1974 · 1,222 sq ft

Last Sale Median Tax Bill Median Sale    
$780,000Sep 2025 $4,3762025 $560,00024 units    

76 Cos Cob Ave

3 bd · 1 ba · 1,138 sqft · built 1955 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$570,000Jun 2004 $6,5612026 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

78 Cos Cob Ave

5 bd · 3 ba · 2,046 sqft · built 1933 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,6922025 Owner on Record Owner Occupied AssessorUpdated Oct 2026

79 Cos Cob Ave

5 bd · 3 ba · 2,869 sqft · built 1949 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,6102026 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

80 Cos Cob Ave

6 bd · 2.5 ba · 3,198 sqft · built 1975 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,4542026 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

81 Cos Cob Ave

6 bd · 4.5 ba · 2,742 sqft · built 1956 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,2722026 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

86 Cos Cob Ave

9 bd · 4.5 ba · 5,032 sqft · built 1978 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2010 $13,5502026 Owner on Record AssessorUpdated Oct 2026

89 Cos Cob Ave

4 bd · 2 ba · 1,599 sqft · built 1910 · 0.35 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,000Dec 1999 $7,0472026 Owner on Record AssessorUpdated Oct 2026

90 Cos Cob Ave

4 bd · 3.5 ba · 3,570 sqft · built 1969 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$250,000Aug 1997 $9,4462026 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

92 Cos Cob Ave

6 bd · 3 ba · 3,109 sqft · built 1966 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,9132026 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

93 Cos Cob Ave

6 bd · 2.5 ba · 3,579 sqft · built 1959 · 0.369 acres

Last Sale Tax Bill Prior Sale Owner Records
$900,000Aug 2005 $11,8582026 Amount on Record Apr 2000 2 Owners on Record AssessorUpdated Oct 2026

94 Cos Cob Ave

6 bd · 3 ba · 3,538 sqft · built 1963 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,5672026 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

95 Cos Cob Ave

3 bd · 1 ba · 1,305 sqft · built 1957 · 0.339 acres

Last Sale Tax Bill Prior Sale Owner Records
$319,000May 2012 $8,0402026 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

Property Records in Nearby Streets