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Union Park, Boston, MA Property Records

Suffolk County and Boston City property records for 76 addresses on Union Park, Boston, MA · Last verified August 2026

Union Park Highlights

Properties 160
Median Sale Price $2,150,000
Deeds and Mortgages on File 138
Median Price per Sqft $1,429
Owner Occupied 39%
Median Annual Tax Bill $14,443
Median Year Built 1899
Median Ownership Tenure 11 years

Properties on Union Park

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

2 Union Park

3 units · Built 1899 · 743 sq ft

Last Sale Median Tax Bill Median Sale    
$922,500Mar 2017 $10,9722025 $922,5003 units    

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2 Union Park

2 bd · 1 ba · 758 sqft · built 1899 · 0.017 acres

Last Sale Tax Bill Prior Sale Owner Records
$525,000Mar 2003 $9,4412025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

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3 Union Park

1 bd · 1 ba · 918 sqft · built 1870 · 0.021 acres

Last Sale Tax Bill Prior Sale Owner Records
$632,500Dec 2005 $10,8782025 Amount on Record Sep 1995 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

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3 Union Park

4 units · Built 1870 · 775 sq ft

Last Sale Median Tax Bill Median Sale    
$1,204,500Aug 2019 $11,9272025 $1,110,0004 units    

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4 Union Park

3 bd · 4.5 ba · 4,360 sqft · built 1875 · 0.062 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2018 $67,9942025 Amount on Record Feb 2006 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

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5 Union Park

5 bd · 5 ba · 5,555 sqft · built 1900 · 0.062 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,525,000Dec 2023 $78,5682025 Amount on Record Jan 2005 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Apr 2026

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6 Union Park

9 bd · 8 ba · 2,743 sqft · built 1900 · 0.062 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,525,000Aug 2018 $39,7982018 Amount on Record Nov 2015 2 Names on Record Assessor + 2 DocumentsUpdated Apr 2026

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6 Union Park

7 units · Built 2017 · 1,858 sq ft

Last Sale Median Tax Bill Median Sale    
$2,950,000Jun 2017 $4082025 —7 units    

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7 Union Park

4,885 sqft · built 1899 · 0.062 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,150,000Feb 2021 $27,3772025 Amount on Record Jan 1990 1 Name on Record Assessor + 3 DocumentsUpdated Jun 2026

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8 Union Park

4,284 sqft · built 1900 · 0.062 acres

Last Sale Tax Bill Prior Sale Owner Records
$555,000Jun 1995 $33,1002025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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9 Union Park

2,878 sqft · built 1999 · 0.066 acres

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

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9 Union Park

5 units · Built 1863 · 860 sq ft

Last Sale Median Tax Bill Median Sale    
$1,586,000Jun 2013 $9,3272025 $550,0005 units    

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10 Union Park

6 bd · 6.5 ba · 4,194 sqft · built 1900 · 0.061 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,750,000Apr 2021 $64,9442025 Amount on Record Aug 2020 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

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11 1/2 Union Park

9 bd · 7.5 ba · 2,224 sqft · built 1900 · 0.051 acres

Last Sale Tax Bill Prior Sale Owner Records
2 Names on Record AssessorUpdated Apr 2026

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11 1/2 Union Park

3 units · Built 1900 · 1,664 sq ft

Last Sale Median Tax Bill Median Sale    
$2,890,000May 2025 $26,4272025 $2,890,0003 units    

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11 Union Park

6 units · Built 1899 · 761 sq ft

Last Sale Median Tax Bill Median Sale    
$1,070,000Mar 2026 $9,4302025 $1,070,0006 units    

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11 Union Park

2,539 sqft · built 1999 · 0.058 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,200,000Nov 2010 1 Name on Record AssessorUpdated Apr 2026

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12 Union Park

7 bd · 6 ba · 5,589 sqft · built 1890 · 0.06 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2013 $66,8832025 Amount on Record Apr 2002 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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14 Union Park

6 bd · 5.5 ba · 4,410 sqft · built 1899 · 0.054 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,550,000Feb 2022 $54,8852025 Amount on Record Jul 1994 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

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15 Union Park

4 units · Built 1899 · 840 sq ft

Last Sale Median Tax Bill Median Sale    
$1,850,000May 2022 $12,2632025 $642,5004 units    

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15 Union Park

1 bd · 1 ba · 850 sqft · built 1899 · 0.019 acres

Last Sale Tax Bill Prior Sale Owner Records
$805,000Oct 2015 $11,2422025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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16 Union Park

4 units · Built 1900 · 822 sq ft

Last Sale Median Tax Bill Median Sale    
$750,000May 2016 $13,1952025 $750,0004 units    

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16 Union Park

2,304 sqft · built 1900 · 0.052 acres

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

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17 Union Park

5 bd · 4.5 ba · 5,133 sqft · built 1899 · 0.046 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,140,000Jun 2014 $61,2412025 Amount on Record Jul 1998 1 Name on Record AssessorUpdated Jul 2026

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18 Union Park

4 bd · 5.5 ba · 4,705 sqft · built 1890 · 0.052 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,700,000Sep 2019 $68,4902025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

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19 Union Park

2,040 sqft · built 1999 · 0.046 acres

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

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19 Union Park

5 units · Built 1900 · 805 sq ft

Last Sale Median Tax Bill Median Sale    
$1,325,000May 2024 $12,5552025 $961,8525 units    

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20 Union Park

2,304 sqft · built 1999 · 0.052 acres

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

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20 Union Park

5 units · Built 1899 · 812 sq ft

Last Sale Median Tax Bill Median Sale    
$1,325,000Mar 2025 $11,9482025 $779,0005 units    

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21 Union Park

3 units · Built 1865 · 1,517 sq ft

Last Sale Median Tax Bill Median Sale    
$2,552,000Jun 2018 $20,1682025 $1,875,0003 units    

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21 Union Park

9 bd · 7 ba · 2,040 sqft · built 1865 · 0.046 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,850,000Sep 2007 2 Names on Record Assessor + 1 DocumentUpdated Jul 2026

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22 Union Park

4 units · Built 1899 · 692 sq ft

Last Sale Median Tax Bill Median Sale    
$1,005,000Jul 2020 $10,7742025 $995,0004 units    

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22 Union Park

2,304 sqft · built 1999 · 0.052 acres

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

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24 Union Park

5 bd · 6.5 ba · 5,025 sqft · built 1890 · 0.052 acres

Last Sale Tax Bill Prior Sale Owner Records
$12,100,000Jun 2023 $67,4262025 Amount on Record Nov 2015 1 Name on Record Assessor + 2 DocumentsUpdated Apr 2026

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25 Union Park

2,040 sqft · built 1899 · 0.046 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,457,625Aug 2013 2 Names on Record AssessorUpdated Apr 2026

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25 Union Park, Apt 1

5 bd · 5 ba · 3,351 sqft · built 1899 · 0.076 acres

Last Sale Tax Bill Prior Sale Owner Records
$879,000Oct 2001 $44,5682025 Amount on Record Sep 1999 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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25 Union Park, Apt 3

3 bd · 2.5 ba · 1,796 sqft · built 1899 · 0.041 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,070,000Jun 2016 $25,0512025 —Mar 2015 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

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26 Union Park

5 units · Built 1870 · 731 sq ft

Last Sale Median Tax Bill Median Sale    
$810,000Mar 2017 $8,6852025 $720,0005 units    

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26 Union Park

2,304 sqft · built 1999 · 0.052 acres

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

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27 Union Park

5,060 sqft · built 1900 · 0.046 acres

Last Sale Tax Bill Prior Sale Owner Records
—May 2013 $33,2422025 1 Name on Record AssessorUpdated May 2026

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28 Union Park

4 units · Built 1900 · 1,430 sq ft

Last Sale Median Tax Bill Median Sale    
$2,100,000Feb 2022 $33,5662025 $3,334,4614 units    

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29 Union Park

2,051 sqft · built 1999 · 0.047 acres

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

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29 Union Park

4 units · Built 1870 · 803 sq ft

Last Sale Median Tax Bill Median Sale    
$2,740,000May 2024 $16,7272025 $1,400,0004 units    

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31 Union Park

4 units · Built 1899 · 800 sq ft

Last Sale Median Tax Bill Median Sale    
$1,475,000Aug 2004 $12,2092025 $639,0004 units    

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31 Union Park

2,040 sqft · built 1999 · 0.046 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,200,000Feb 1998 1 Name on Record AssessorUpdated Apr 2026

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32 Union Park

2,304 sqft · built 1999 · 0.052 acres

Last Sale Tax Bill Prior Sale Owner Records
$108,500May 1991 1 Name on Record AssessorUpdated Apr 2026

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32 Union Park

4 units · Built 1900 · 795 sq ft

Last Sale Median Tax Bill Median Sale    
$1,069,000May 2022 $15,4782025 $1,470,0004 units    

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33 Union Park

4 units · Built 1850 · 920 sq ft

Last Sale Median Tax Bill Median Sale    
$1,425,000Dec 2025 $11,9332025 $1,370,0004 units    

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33 Union Park

2,040 sqft · built 1999 · 0.046 acres

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

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34 Union Park

4,302 sqft · built 1899 · 0.052 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,400,000Sep 2022 $23,6792025 —Jun 2007 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

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35 Union Park

6 bd · 1 ba · 5,536 sqft · built 1890 · 0.046 acres

Last Sale Tax Bill Prior Sale Owner Records
—May 2010 $33,2682025 —Apr 2008 1 Name on Record AssessorUpdated May 2026

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36 Union Park

5 bd · 4,657 sqft · built 1890 · 0.052 acres

Last Sale Tax Bill Prior Sale Owner Records
$27,5782025 1 Name on Record Assessor + 1 DocumentUpdated Apr 2026

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37 Union Park

2,040 sqft · built 1999 · 0.046 acres

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

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37 Union Park

3 units · Built 1890 · 900 sq ft

Last Sale Median Tax Bill Median Sale    
$1,275,000Oct 2025 $22,7072025 $1,275,0003 units    

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38 Union Park

6 bd · 5.5 ba · 4,741 sqft · built 1899 · 0.052 acres

Last Sale Tax Bill Prior Sale Owner Records
$770,000Jul 1993 $53,8812025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Apr 2026

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39 Union Park

5 bd · 7 ba · 5,832 sqft · built 1900 · 0.046 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,200,000May 2025 $75,9172025 Amount on Record Jul 2008 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Apr 2026

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40 Union Park

6 bd · 6 ba · 4,741 sqft · built 1900 · 0.054 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,100,000Sep 2021 $72,1252025 —Dec 2012 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

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41 Union Park

5 units · Built 1850 · 910 sq ft

Last Sale Median Tax Bill Median Sale    
$1,226,000Sep 2016 $13,1682025 $1,226,0005 units    

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41 Union Park

2,195 sqft · built 1999 · 0.05 acres

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

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42 Union Park

2,694 sqft · built 1999 · 0.061 acres

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

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42 Union Park

4 units · Built 1890 · 950 sq ft

Last Sale Median Tax Bill Median Sale    
$4,250,000Jul 2021 $14,7782025 $1,150,0004 units    

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43 Union Park

2,676 sqft · built 1999 · 0.061 acres

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

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43 Union Park

3 units · Built 1850 · 1,779 sq ft

Last Sale Median Tax Bill Median Sale    
$2,850,000Jan 2022 $29,9682025 $1,825,0003 units    

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44 Union Park

6 bd · 5,260 sqft · built 1880 · 0.068 acres

Last Sale Tax Bill Prior Sale Owner Records
$33,6602025 1 Name on Record AssessorUpdated Apr 2026

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45 Union Park

6 bd · 3 ba · 3,385 sqft · built 1890 · 0.037 acres

Last Sale Tax Bill Prior Sale Owner Records
$36,5972025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

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46 Union Park

3,144 sqft · built 1999 · 0.072 acres

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

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46 Union Park

6 units · Built 1899 · 902 sq ft

Last Sale Median Tax Bill Median Sale    
$1,250,000May 2020 $12,5702025 $390,0006 units    

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47 Union Park

5 bd · 4 ba · 4,169 sqft · built 1890 · 0.037 acres

Last Sale Tax Bill Prior Sale Owner Records
$42,2432025 1 Name on Record Owner Occupied AssessorUpdated Apr 2026

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48 Union Park

3,144 sqft · built 1900 · 0.072 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,499,000Nov 2019 Amount on Record Nov 2019 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

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48 Union Park

3 units · Built 1900 · 2,090 sq ft

Last Sale Median Tax Bill Median Sale    
$3,900,000Jun 2026 $30,0322025 —3 units    

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49 Union Park

1,640 sqft · built 1999 · 0.037 acres

Last Sale Tax Bill Prior Sale Owner Records
$230,000May 1998 1 Name on Record AssessorUpdated Apr 2026

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49 Union Park

3 units · Built 1850 · 614 sq ft

Last Sale Median Tax Bill Median Sale    
$2,150,000Dec 2021 $15,8312025 —3 units    

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50 Union Park

4,567 sqft · built 1899 · 0.063 acres

Last Sale Tax Bill Prior Sale Owner Records
$36,7332025 2 Names on Record AssessorUpdated Aug 2026

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51 Union Park

4,575 sqft · built 1900 · 0.037 acres

Last Sale Tax Bill Prior Sale Owner Records
$23,7692025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Apr 2026

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52 Union Park

5 units · Built 1890 · 1,046 sq ft

Last Sale Median Tax Bill Median Sale    
$3,436,875Dec 2020 $11,3692025 —5 units    

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54 Union Park

4 bd · 3 ba · 3,043 sqft · built 1890 · 0.016 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000Oct 1997 $29,4362025 Amount on Record Nov 1993 1 Name on Record Assessor + 1 DocumentUpdated Aug 2026

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Wildfire Risk on Union Park

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

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Property Records in Nearby Streets