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Union Ave, Sudbury, MA Property Records

Middlesex County and Sudbury Town property records for 32 addresses on Union Ave, Sudbury, MA · Last verified October 2026

Union Ave Highlights

Properties 32
Median Sale Price $1,400,000
Deeds and Mortgages on File 40
Median Price per Sqft $346
Owner Occupied 28%
Median Annual Tax Bill $17,859
Median Year Built 1969
Median Ownership Tenure 8 years

Properties on Union Ave

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

1 Union Ave

2.5 ba · 4,944 sqft · built 1900 · 0.66 acres

Last Sale Tax Bill Prior Sale Owner Records
$900,000Apr 2019 $15,8342026 Amount on Record Jun 2013 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

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15 Union Ave

2 ba · 4,698 sqft · built 1960 · 0.739 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,200,000Mar 2021 $18,2832026 Amount on Record Jan 2005 Owner on Record Assessor + 2 DocumentsUpdated Oct 2026

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18 Union Ave

2 ba · 5,533 sqft · built 1961 · 0.63 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,400,000Jul 2021 $13,8482026 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

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21 Union Ave

1 ba · 1,624 sqft · built 1984 · 1.51 acres

Last Sale Tax Bill Prior Sale Owner Records
$13,8182026 2 Owners on Record AssessorUpdated Oct 2026

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22 Union Ave

9,944 sqft · built 1972 · 0.639 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,450,000Sep 2021 $47,6592026 Amount on Record Apr 2020 Owner on Record Assessor + 3 DocumentsUpdated Oct 2026

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23 Union Ave

0.41 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,700,000Apr 2020 $6,2422026 Owner on Record Assessor + 2 DocumentsUpdated Oct 2026

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25 Union Ave

2 ba · 33,000 sqft · built 1968 · 5 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,775,000Nov 2008 $57,4112026 Amount on Record Aug 2007 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

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27 Union Ave

1 ba · 7,760 sqft · built 1970 · 3 acres

Last Sale Tax Bill Prior Sale Owner Records
$925,000Mar 2003 $31,4122026 Amount on Record Dec 2000 Owner on Record AssessorUpdated Oct 2026

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28 Union Ave

25,864 sqft · built 1968 · 3.05 acres

Last Sale Tax Bill Prior Sale Owner Records
$985,000Apr 1993 $43,2222026 Owner on Record Assessor + 2 DocumentsUpdated Oct 2026

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33 Union Ave

7 ba · 107,264 sqft · built 1970 · 9.08 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,350,000Mar 2018 $159,9092026 —Jan 2009 2 Owners on Record Assessor + 3 DocumentsUpdated Oct 2026

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37 Union Ave

0.5 ba · 288 sqft · built 1950 · 0.008 acres

Last Sale Tax Bill Prior Sale Owner Records
$4302024 Owner on Record AssessorUpdated Oct 2026

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39 Union Ave

2.5 ba · 10,425 sqft · built 1950 · 0.83 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,100,000Mar 2018 $25,5622026 Amount on Record Oct 1995 2 Owners on Record Assessor + 3 DocumentsUpdated Oct 2026

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46 Union Ave

2,720 sqft · built 1957 · 0.88 acres

Last Sale Tax Bill Prior Sale Owner Records
$200,000Jul 2014 $13,0452026 —Feb 2005 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

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48 Union Ave

0.86 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,8842026 Owner on Record AssessorUpdated Oct 2026

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50 Union Ave

0.5 ba · 3,600 sqft · built 1900 · 0.6 acres

Last Sale Tax Bill Prior Sale Owner Records
$550,000Dec 2012 $12,3682026 —Oct 2012 2 Owners on Record AssessorUpdated Oct 2026

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56 Union Ave

8,120 sqft · built 1968 · 1.16 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2007 $16,3912026 Amount on Record — Owner on Record AssessorUpdated Oct 2026

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57 Union Ave

3.5 ba · 11,480 sqft · built 1959 · 0.919 acres

Last Sale Tax Bill Prior Sale Owner Records
$23,0312026 Owner on Record AssessorUpdated Oct 2026

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60 Union Ave

5.5 ba · 12,000 sqft · built 1965 · 0.819 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,700,000Aug 2021 $35,0282026 Owner on Record Assessor + 2 DocumentsUpdated Oct 2026

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64 Union Ave

2 ba · 16,000 sqft · built 1981 · 1.41 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,450,000Oct 2023 $20,9002026 Amount on Record Apr 1993 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

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65 Union Ave

2 ba · 28,480 sqft · built 1969 · 0.93 acres

Last Sale Tax Bill Prior Sale Owner Records
$56,0622026 2 Owners on Record AssessorUpdated Oct 2026

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71 Union Ave

2 ba · 63,130 sqft · built 1981 · 6.6 acres

Last Sale Tax Bill Prior Sale Owner Records
$122,6292026 2 Owners on Record Assessor + 1 DocumentUpdated Oct 2026

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75 Union Ave

2.06 acres

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

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80 Union Ave

2.5 ba · 10,420 sqft · built 1972 · 2.95 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2012 $34,7572026 Amount on Record Jan 2012 Owner on Record AssessorUpdated Oct 2026

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128 Union Ave

4 bd · 2.5 ba · 2,513 sqft · built 2000 · 0.928 acres

Last Sale Tax Bill Prior Sale Owner Records
$740,000Aug 2004 $17,2772026 Amount on Record Jul 2000 Owner on Record Owner Occupied AssessorUpdated Oct 2026

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135 Union Ave

4 bd · 4.5 ba · 3,680 sqft · built 1983 · 1.5 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,185,000Aug 2021 $18,7662026 Amount on Record Nov 1994 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

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138 Union Ave

4 bd · 2.5 ba · 2,143 sqft · built 1999 · 1 acres

Last Sale Tax Bill Prior Sale Owner Records
$875,000Dec 2022 $14,7752026 Amount on Record Feb 2000 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

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143 Union Ave

3 bd · 2 ba · 2,534 sqft · built 1986 · 1.56 acres

Last Sale Tax Bill Prior Sale Owner Records
$630,000Jul 2015 $15,2652026 Amount on Record Nov 2004 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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151 Union Ave

3 bd · 3.5 ba · 2,379 sqft · built 1987 · 1.58 acres

Last Sale Tax Bill Prior Sale Owner Records
$938,000Jul 2024 $14,2342026 —Dec 2012 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

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172 Union Ave

4 bd · 2.5 ba · 3,198 sqft · built 2000 · 1.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$777,000Jan 2016 $18,6222026 Amount on Record Apr 2004 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

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173 Union Ave

3 bd · 2.5 ba · 2,425 sqft · built 1960 · 0.759 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,090,000May 2023 $10,8422026 Amount on Record Mar 2022 2 Owners on Record Owner Occupied Assessor + 4 DocumentsUpdated Oct 2026

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177 Union Ave

4 bd · 4.5 ba · 2,967 sqft · built 1961 · 0.83 acres

Last Sale Tax Bill Prior Sale Owner Records
$795,000Sep 2017 $17,0652026 Amount on Record Jan 2014 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

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201 Union Ave

4 bd · 2.5 ba · 3,210 sqft · built 1968 · 0.51 acres

Last Sale Tax Bill Prior Sale Owner Records
$680,000May 2015 $16,3612026 Amount on Record Jan 1988 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

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Property Records in Nearby Streets