William St, Norwalk, CT Property Records

Norwalk City property records for 82 addresses on William St, Norwalk, CT · Last verified August 2026

William St Highlights

Properties 82
Median Sale Price $700,000
Deeds and Mortgages on File 101
Median Price per Sqft $325
Owner Occupied 95%
Median Annual Tax Bill $9,751
Median Year Built 1959
Median Ownership Tenure 16 years

Properties on William St

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

1 William St

3 bd · 2 ba · 1,464 sqft · built 1958 · 0.3 acres

Last Sale Tax Bill Prior Sale Owner Records
$450,000Jan 2021 $8,9932025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

2 William St

4 bd · 2.5 ba · 1,740 sqft · built 1940 · 0.219 acres

Last Sale Tax Bill Prior Sale Owner Records
$310,000Aug 2013 $8,3272025 Amount on Record Feb 1999 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

3 William St

5 bd · 2.5 ba · 2,448 sqft · built 1960 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$704,500Nov 2021 $11,8372025 Amount on Record Dec 2020 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

4 William St

3 bd · 2 ba · 1,428 sqft · built 1947 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$198,000Aug 1991 $8,1332025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

5 William St

3 bd · 1.5 ba · 1,672 sqft · built 1960 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$597,400Feb 2007 $9,2392025 Amount on Record Mar 2001 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

6 William St

2 bd · 1 ba · 1,008 sqft · built 1950 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,000Sep 2017 $7,2772025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

7 William St

3 bd · 2.5 ba · 1,808 sqft · built 1958 · 0.31 acres

Last Sale Tax Bill Prior Sale Owner Records
$170,500Aug 1985 $9,2152025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

8 William St

2 bd · 1.5 ba · 1,607 sqft · built 1948 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,3962025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

9 William St

4 bd · 2 ba · 2,140 sqft · built 1959 · 0.319 acres

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

10 William St

3 bd · 3 ba · 1,524 sqft · built 1951 · 0.219 acres

Last Sale Tax Bill Prior Sale Owner Records
$315,000Jun 2001 $8,7532025 Amount on Record Oct 1999 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

11 William St

3 bd · 1.5 ba · 1,671 sqft · built 1960 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$420,000Sep 2021 $9,3882025 Amount on Record Jan 1998 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

12 William St

4 bd · 3 ba · 2,083 sqft · built 1930 · 0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,055,000Jun 2026 $11,4962025 Amount on Record Oct 2019 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

14 William St

3 bd · 1.5 ba · 1,568 sqft · built 1930 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$410,000May 2018 $8,1392025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

15 William St

5 bd · 3 ba · 2,202 sqft · built 1960 · 0.35 acres

Last Sale Tax Bill Prior Sale Owner Records
$640,000May 2006 $11,0262025 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

16 William St

3 bd · 2 ba · 1,692 sqft · built 1945 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$550,000Jul 2025 $7,8102025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

17 William St

5 bd · 3 ba · 2,410 sqft · built 1890 · 0.4 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000Mar 2023 $12,2202025 Amount on Record May 2015 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

18 William St

5 bd · 4.5 ba · 3,884 sqft · built 1945 · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$399,999Jan 2017 $13,5472025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

21 William St

4 bd · 3 ba · 1,960 sqft · built 1961 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$535,000Jul 2004 $9,2922025 Amount on Record Jun 1998 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

22 William St

4 bd · 2 ba · 1,596 sqft · built 1948 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$435,000Jul 2004 $9,1512025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

23 William St

4 bd · 3.5 ba · 1,350 sqft · built 1963 · 0.81 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,5132025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

25 William St

4 bd · 2.5 ba · 2,963 sqft · built 1811 · 0.36 acres

Last Sale Tax Bill Prior Sale Owner Records
$525,000Apr 2008 $12,9382025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

27 William St

3 bd · 2.5 ba · 2,204 sqft · built 1960 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$603,000Jun 2007 $10,1802025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

29 William St

2 bd · 1.5 ba · 1,350 sqft · built 1960 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$439,000Feb 2021 $8,0742025 Amount on Record Jun 2015 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

33 William St

3 bd · 2 ba · 1,564 sqft · built 1960 · 0.35 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,8602025 2 Names on Record AssessorUpdated Jul 2026

35 William St

4 bd · 2.5 ba · 1,564 sqft · built 1960 · 0.3 acres

Last Sale Tax Bill Prior Sale Owner Records
$539,500May 2017 $9,3232025 Amount on Record Oct 2007 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

37 William St

3 bd · 2.5 ba · 1,996 sqft · built 1964 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$580,000Jul 2021 $10,1132025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

39 William St

5 bd · 2.5 ba · 3,024 sqft · built 1902 · 0.31 acres

Last Sale Tax Bill Prior Sale Owner Records
$526,750Feb 2018 $13,0342025 Amount on Record Jul 2012 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

40 William St

3 bd · 1.5 ba · 1,344 sqft · built 1955 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$406,487Apr 2010 $8,7542025 Amount on Record Nov 2001 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

41 William St

4 bd · 2 ba · 1,540 sqft · built 1963 · 0.31 acres

Last Sale Tax Bill Prior Sale Owner Records
$680,000Mar 2024 $9,0682025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

43 William St

4 bd · 2.5 ba · 1,708 sqft · built 1965 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$110,000Mar 1982 $9,4462025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

45 William St

4 bd · 3 ba · 2,534 sqft · built 1959 · 0.369 acres

Last Sale Tax Bill Prior Sale Owner Records
$530,000Sep 2014 $11,4592025 Amount on Record Dec 2003 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

46 William St

2 bd · 2.5 ba · 1,839 sqft · built 1955 · 0.36 acres

Last Sale Tax Bill Prior Sale Owner Records
$805,000May 2025 $9,8352025 Amount on Record Nov 2010 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

47 William St

4 bd · 2.5 ba · 2,180 sqft · built 1958 · 0.46 acres

Last Sale Tax Bill Prior Sale Owner Records
$137,500Dec 1991 $11,4032025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

48 William St

2 bd · 1 ba · 1,032 sqft · built 1957 · 0.35 acres

Last Sale Tax Bill Prior Sale Owner Records
$359,500Feb 2017 $8,2192024 Amount on Record Mar 2008 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

50 William St

2 bd · 1 ba · 1,196 sqft · built 1955 · 0.35 acres

Last Sale Tax Bill Prior Sale Owner Records
$252,000Jun 1988 $8,1832025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

51 William St

3 bd · 2.5 ba · 1,904 sqft · built 1950 · 0.58 acres

Last Sale Tax Bill Prior Sale Owner Records
$309,500Mar 1988 $10,5212025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

52 William St

3 bd · 2 ba · 1,232 sqft · built 1957 · 0.35 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,6142025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

54 William St

3 bd · 2 ba · 2,126 sqft · built 1964 · 0.35 acres

Last Sale Tax Bill Prior Sale Owner Records
$450,000Aug 2019 $11,0152025 2 Names on Record Assessor + 2 DocumentsUpdated Jul 2026

55 William St

4 bd · 2.5 ba · 1,564 sqft · built 1964 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,4392025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

56 William St

4 bd · 2.5 ba · 1,388 sqft · built 1963 · 0.369 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,6062025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

58 William St

4 bd · 3.5 ba · 3,235 sqft · built 1969 · 0.789 acres

Last Sale Tax Bill Prior Sale Owner Records
$597,000May 2004 $14,0302025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

59 William St

4 bd · 3 ba · 1,892 sqft · built 1964 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,5512025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

60 William St

7 bd · 5.5 ba · 4,319 sqft · built 1969 · 0.61 acres

Last Sale Tax Bill Prior Sale Owner Records
$750,000Aug 2022 $14,4722025 Amount on Record Apr 2010 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

61 William St

4 bd · 3 ba · 1,564 sqft · built 1963 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$499,900Aug 2006 $9,1182025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

62 William St

4 bd · 3 ba · 2,757 sqft · built 1952 · 0.489 acres

Last Sale Tax Bill Prior Sale Owner Records
$570,000Jun 2019 $12,7212025 Amount on Record Nov 1987 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

63 William St

3 bd · 1.5 ba · 1,460 sqft · built 1964 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$460,000Oct 2008 $9,2922025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

64 William St

3 bd · 2.5 ba · 1,344 sqft · built 1963 · 0.789 acres

Last Sale Tax Bill Prior Sale Owner Records
$431,000Apr 2015 $9,8592025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

65 William St

4 bd · 3 ba · 1,610 sqft · built 1964 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,7512025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

67 William St

3 bd · 1.5 ba · 1,750 sqft · built 1964 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,1102025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

68 William St

3 bd · 1.5 ba · 1,904 sqft · built 1952 · 0.7 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,031,000Sep 2025 $10,4362025 Amount on Record Jan 2016 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

69 William St

3 bd · 1.5 ba · 1,724 sqft · built 1964 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$335,000Sep 2012 $9,9292025 Amount on Record Aug 1996 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

70 William St

3 bd · 1.5 ba · 1,860 sqft · built 1952 · 0.63 acres

Last Sale Tax Bill Prior Sale Owner Records
$525,000Jan 2008 $10,3832024 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

72 William St

4 bd · 2.5 ba · 2,058 sqft · built 1960 · 0.78 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,4392025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

74 William St

3 bd · 2 ba · 1,840 sqft · built 1959 · 0.419 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,4172024 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

75 William St

3 bd · 2 ba · 2,396 sqft · built 1940 · 0.51 acres

Last Sale Tax Bill Prior Sale Owner Records
$570,000May 2015 $11,2652025 Amount on Record Sep 2000 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

76 William St

3 bd · 1.5 ba · 1,568 sqft · built 1961 · 0.339 acres

Last Sale Tax Bill Prior Sale Owner Records
$262,000Sep 1999 $8,8972025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

77 William St

4 bd · 1 ba · 1,849 sqft · built 1945 · 0.53 acres

Last Sale Tax Bill Prior Sale Owner Records
$765,000Nov 2023 $8,7382025 Amount on Record Jan 2023 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

78 William St

4 bd · 2 ba · 1,608 sqft · built 1963 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,1172024 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

79 William St

3 bd · 2.5 ba · 2,398 sqft · built 1940 · 0.619 acres

Last Sale Tax Bill Prior Sale Owner Records
$653,000Aug 2006 $11,2452025 Amount on Record Jul 1988 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

80 William St

3 bd · 1.5 ba · 2,223 sqft · built 1950 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$613,275Sep 2005 $10,2012025 Amount on Record Jun 1990 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

81 William St

2 bd · 2 ba · 1,850 sqft · built 1939 · 0.789 acres

Last Sale Tax Bill Prior Sale Owner Records
$440,000Jul 2013 $10,3222025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

85 William St

2 bd · 2.5 ba · 2,086 sqft · built 1947 · 0.639 acres

Last Sale Tax Bill Prior Sale Owner Records
$120,000Sep 1979 $11,2122025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

88 William St

4 bd · 2 ba · 1,692 sqft · built 1958 · 0.33 acres

Last Sale Tax Bill Prior Sale Owner Records
$255,000Aug 1997 $8,6872025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

89 William St

3 bd · 2.5 ba · 1,460 sqft · built 1963 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$820,000Apr 2024 $11,4522025 Amount on Record Feb 2022 2 Names on Record Owner Occupied Assessor + 6 DocumentsUpdated Jul 2026

90 William St

4 bd · 2.5 ba · 1,914 sqft · built 1958 · 0.31 acres

Last Sale Tax Bill Prior Sale Owner Records
$215,000Nov 1992 $10,2222025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

95 William St

4 bd · 2.5 ba · 2,234 sqft · built 1958 · 0.819 acres

Last Sale Tax Bill Prior Sale Owner Records
$13,2772025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

97 William St

4 bd · 3 ba · 1,929 sqft · built 1934 · 0.3 acres

Last Sale Tax Bill Prior Sale Owner Records
$585,000May 2004 $11,0262025 Amount on Record Oct 1999 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

98 William St

3 bd · 2 ba · 1,684 sqft · built 1958 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$455,000Feb 2020 $8,8982025 Amount on Record Aug 2005 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

99 William St

3 bd · 1.5 ba · 1,764 sqft · built 1962 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,9532025 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

100 William St

4 bd · 2.5 ba · 1,432 sqft · built 1958 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$549,000Mar 2022 $9,4862025 Amount on Record Sep 1989 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

102 William St

5 bd · 3.5 ba · 2,840 sqft · built 1969 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$273,000Sep 1997 $11,3092025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

103 William St

3 bd · 3.5 ba · 2,388 sqft · built 1955 · 0.989 acres

Last Sale Tax Bill Prior Sale Owner Records
$230,000May 1990 $11,6122025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

106 William St

4 bd · 2.5 ba · 1,572 sqft · built 1969 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,865,000Oct 2022 $9,5802025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

107 William St

5 bd · 2.5 ba · 1,694 sqft · built 1972 · 0.38 acres

Last Sale Tax Bill Prior Sale Owner Records
$250,000Aug 1991 $9,9932025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

110 William St

3 bd · 2.5 ba · 1,400 sqft · built 1969 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$287,000Dec 1998 $9,4322025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

113 William St

3 bd · 2.5 ba · 1,444 sqft · built 1965 · 0.43 acres

Last Sale Tax Bill Prior Sale Owner Records
$420,000Sep 2010 $9,7032025 Amount on Record Sep 2005 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

115 William St

4 bd · 2.5 ba · 1,632 sqft · built 1962 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$480,000Dec 2008 $10,2932025 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

116 William St

4 bd · 2.5 ba · 1,458 sqft · built 1969 · 0.38 acres

Last Sale Tax Bill Prior Sale Owner Records
$555,000Jun 2016 $9,4192025 Amount on Record Mar 2007 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

117 William St

3 bd · 2 ba · 1,361 sqft · built 1964 · 0.369 acres

Last Sale Tax Bill Prior Sale Owner Records
$510,000Jun 2005 $8,9332025 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

118 William St

4 bd · 2.5 ba · 1,512 sqft · built 1962 · 0.519 acres

Last Sale Tax Bill Prior Sale Owner Records
$420,000Jul 2002 $9,7062025 Amount on Record Jun 1994 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

119 William St

4 bd · 2.5 ba · 1,398 sqft · built 1967 · 0.469 acres

Last Sale Tax Bill Prior Sale Owner Records
$455,000Mar 2017 $11,0692025 Amount on Record Jun 1990 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

121 William St

3 bd · 3 ba · 2,507 sqft · built 1920 · 0.31 acres

Last Sale Tax Bill Prior Sale Owner Records
$475,000Nov 2005 $12,7852025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

Wildfire Risk on William St

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskLow
this street's cells rank above 1% of the US · above 2% of Connecticut
Wildfire LikelihoodLess than 1 in 10,000 per year
ExposureDirect
1 of 7 cells directly exposed · 5 adjoin burnable vegetation

Property Records in Nearby Streets