Decatur St, Cambridge, MA Property Records

Middlesex County and Cambridge City property records for 19 addresses on Decatur St, Cambridge, MA · Last verified October 2026

Decatur St Highlights

Properties 25
Median Sale Price $1,200,000
Deeds and Mortgages on File 19
Median Price per Sqft $1,045
Owner Occupied 60%
Median Annual Tax Bill $9,225
Median Year Built 1886
Median Ownership Tenure 12 years

Properties on Decatur St

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

9 Decatur St, #1

4 bd · 3.5 ba · 2,285 sqft · built 2018 · 0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,2532025 2 Owners on Record Assessor + 1 DocumentUpdated Jul 2026

9 Decatur St, #2

4 bd · 3.5 ba · 2,310 sqft · built 2018 · 0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,3572025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

10 Decatur St

2 bd · 2.5 ba · 1,220 sqft · built 2004 · 0.641 acres

Last Sale Tax Bill Prior Sale Owner Records
$570,000Oct 2007 $8,7362025 Amount on Record Jul 2005 Owner on Record Owner Occupied AssessorUpdated Jul 2026

12 Decatur St

3 bd · 2.5 ba · 1,321 sqft · built 2004 · 0.641 acres

Last Sale Tax Bill Prior Sale Owner Records
$180,000Sep 2005 $1,2192025 Amount on Record Aug 2002 Owner on Record Owner Occupied AssessorUpdated Jul 2026

13 Decatur St

3 bd · 2.5 ba · 2,386 sqft · built 1873 · 0.105 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,700,000Jul 2017 $14,6952025 Amount on Record Aug 2001 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Sep 2026

14 Decatur St

3 bd · 2.5 ba · 1,327 sqft · built 2004 · 0.641 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,050,000Jul 2015 $10,7382025 Amount on Record May 2006 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2026

16 Decatur St

3 bd · 2.5 ba · 1,327 sqft · built 2004 · 0.641 acres

Last Sale Tax Bill Prior Sale Owner Records
$975,000Aug 2014 $10,7382025 Amount on Record Sep 2005 Owner on Record Owner Occupied AssessorUpdated Sep 2026

17 Decatur St

3 units · Built 1886 · 1,036 sq ft

Last Sale Median Tax Bill Median Sale    
$795,000Oct 2004 —— —3 units    

18 Decatur St

3 bd · 2.5 ba · 1,363 sqft · built 2004 · 0.641 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,920,000Sep 2026 $10,3932025 Amount on Record Dec 2016 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

20 Decatur St

2 bd · 2.5 ba · 1,175 sqft · built 1930 · 0.173 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,200,000Aug 2025 $7,4482025 2 Owners on Record Assessor + 2 DocumentsUpdated Jul 2026

21 Decatur St

4 bd · 3.5 ba · 2,884 sqft · built 1873 · 0.096 acres

Last Sale Tax Bill Prior Sale Owner Records
$740,000Dec 2011 Amount on Record Nov 2011 Owner on Record AssessorUpdated Apr 2026

21 Decatur St

3 units · Built 1873 · 766 sq ft

Last Sale Median Tax Bill Median Sale    
$1,405,000Jul 2021 $9,2252025 —3 units    

22 Decatur St

0.172 acres

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

22 Decatur St

3 units · Built 1930 · 816 sq ft

Last Sale Median Tax Bill Median Sale    
$864,300Nov 2024 $4,3832025 $864,3003 units    

24 Decatur St

4 bd · 2.5 ba · 1,973 sqft · built 1854 · 0.085 acres

Last Sale Tax Bill Prior Sale Owner Records
$460,000Feb 2010 $13,8472025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

25 Decatur St

5 bd · 4 ba · 3,522 sqft · built 1886 · 0.133 acres

Last Sale Tax Bill Prior Sale Owner Records
$15,1112025 2 Owners on Record Owner Occupied AssessorUpdated Apr 2026

27 Decatur St

4 bd · 3.5 ba · 1,283 sqft · built 1873 · 0.062 acres

Last Sale Tax Bill Prior Sale Owner Records
$525,000Nov 2009 $9,7612025 Amount on Record Jul 2005 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

30 Decatur St

6 bd · 2.5 ba · 1,954 sqft · built 1873 · 0.049 acres

Last Sale Tax Bill Prior Sale Owner Records
$500,000Aug 2006 $8,3972025 Owner on Record Owner Occupied AssessorUpdated Jul 2026

79 Decatur St

0.059 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,200,000Mar 2017 Owner on Record AssessorUpdated Apr 2026

Property Records in Nearby Streets