Suffolk County and Boston City property records for 39 addresses on Prospect St, Charlestown, MA · Last verified October 2026
| Properties | 57 |
|---|---|
| Median Sale Price | $975,000 |
| Deeds and Mortgages on File | 77 |
| Median Price per Sqft | $765 |
| Owner Occupied | 47% |
| Median Annual Tax Bill | $11,200 |
| Median Year Built | 1890 |
| Median Ownership Tenure | 6 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4 Prospect St |
5,868 sqft 0.041 acres | $4,339 2025 | Assessor Updated Apr 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
7 Prospect St |
5,868 sqft 0.07 acres | $1,850,000 Oct 2015 | $2,792 2025 | Assessor Updated Apr 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
8 Prospect St |
3 units · 1,131 sq ft Built 1880 | $1,135,000 Apr 2025 | $11,279 2025 |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
9 Prospect St |
6 bd · 6.5 ba · 1,706 sqft built 1890 · 0.039 acres | $925,000 Mar 2017 | Assessor + 1 Document Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
9 Prospect St |
3 units · 1,105 sq ft Built 2017 | $1,180,000 Nov 2021 | $11,394 2025 |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
10 Prospect St |
3 units · 1,050 sq ft Built 1880 | $885,000 Oct 2023 | $9,969 2025 |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
10 Prospect St |
11 bd · 3 ba · 1,687 sqft built 1880 · 0.038 acres | $775,000 Apr 2010 | Assessor Updated Apr 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
11 Prospect St |
9 bd · 3 ba · 2,465 sqft built 1890 · 0.056 acres | $938,000 Mar 2021 | Assessor + 3 Documents Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
11 Prospect St |
3 units · 1,241 sq ft Built 1890 | $1,317,500 May 2022 | $14,498 2025 |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
12 Prospect St |
4 bd · 2.5 ba · 2,310 sqft built 1880 · 0.035 acres | $1,280,000 Mar 2026 | $15,757 2025 | Assessor + 6 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
14 Prospect St |
4,080 sqft 0.031 acres | $2,425,000 Feb 2025 | $1,582 2025 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
15 Prospect St |
6 bd · 6 ba · 2,053 sqft built 1890 · 0.047 acres | $810,000 Apr 2021 | Assessor + 6 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
15 Prospect St |
3 units · 851 sq ft Built 1890 | $9,079 2025 |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
16 Prospect St |
5 bd · 3 ba · 3,264 sqft built 1880 · 0.042 acres | $700,000 Jan 2026 | $16,910 2025 | Assessor + 2 Documents Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
17 Prospect St |
7 bd · 6.5 ba · 1,512 sqft built 1890 · 0.034 acres | $1,100,000 Aug 2018 | Assessor + 2 Documents Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
17 Prospect St |
3 units · 1,081 sq ft Built 1890 | $975,000 Oct 2024 | $11,952 2025 |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
19 Prospect St |
3 units · 1,025 sq ft Built 2001 | $975,000 Dec 2022 | $11,200 2025 |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
19 Prospect St |
1,533 sqft built 1890 · 0.035 acres | $550,000 Sep 2000 | Assessor Updated Apr 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20 Prospect St |
3 bd · 3.5 ba · 1,617 sqft built 1970 · 0.075 acres | — Aug 2007 | $21,982 2025 | Assessor + 4 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21 Prospect St |
6 bd · 6 ba · 1,519 sqft built 1890 · 0.034 acres | $550,000 Mar 2002 | Assessor Updated Apr 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21 Prospect St |
3 units · 905 sq ft Built 1890 | $1,030,000 Sep 2026 | $9,196 2025 |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
22 Prospect St |
6 bd · 6 ba · 3,060 sqft built 1880 · 0.038 acres | $1,150,000 Apr 2023 | $18,380 2024 | Assessor + 4 Documents Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
24 Prospect St |
4 bd · 2 ba · 1,500 sqft built 1880 · 0.034 acres | Assessor Updated Apr 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
24, #1 Prospect St |
1 bd · 1 ba · 546 sqft built 1880 · 0.012 acres | $320,000 Dec 2006 | $6,125 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
24, #2 Prospect St |
2 bd · 2 ba · 1,317 sqft built 1875 · 0.03 acres | $622,000 Aug 2004 | $10,876 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
25 Prospect St |
3 bd · 2.5 ba · 2,400 sqft built 2000 · 0.033 acres | $459,000 Jun 2000 | $24,251 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
26 Prospect St |
3 units · 786 sq ft Built 1880 | $609,000 Nov 2022 | $5,475 2025 |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
26 Prospect St |
1,475 sqft built 1999 · 0.033 acres | Assessor Updated Apr 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
27 Prospect St |
3 bd · 2.5 ba · 2,400 sqft built 2000 · 0.028 acres | $1,650,000 Mar 2021 | $24,017 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
28 Prospect St |
3 bd · 3 ba · 3,156 sqft built 1880 · 0.032 acres | — Apr 2007 | $13,823 2025 | Assessor Updated Apr 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
29 Prospect St |
3 bd · 2.5 ba · 2,400 sqft built 2000 · 0.027 acres | $6,441 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
30 Prospect St |
6 bd · 3 ba · 3,474 sqft built 1880 · 0.031 acres | $20,128 2025 | Assessor Updated Apr 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
31 Prospect St |
3 bd · 2.5 ba · 2,837 sqft built 2000 · 0.027 acres | $2,215,000 Nov 2024 | $26,999 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
32 Prospect St |
7 bd · 3 ba · 2,718 sqft built 1880 · 0.029 acres | $17,390 2025 | Assessor + 3 Documents Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
33 Prospect St |
4 bd · 3 ba · 2,838 sqft built 2000 · 0.036 acres | $630,000 Jun 2000 | $24,538 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
34 Prospect St |
4 bd · 2.5 ba · 2,538 sqft built 1880 · 0.028 acres | $1,245,000 Mar 2021 | $17,785 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
34, #36 Prospect St |
3 bd · 1.5 ba · 1,240 sqft built 1960 · 0.138 acres | $398,000 Jun 2004 | $6,416 2025 | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
36 Prospect St |
4 bd · 2.5 ba · 2,506 sqft built 1880 · 0.029 acres | — Feb 2016 | $17,288 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
68 Prospect St |
2,094 sqft built 1880 · 0.048 acres | Assessor Updated Apr 2026 | Owner on File |