121 M St
South Boston, MA 02127
1 bd 1 ba 636 sqft Built 1900 Lot 1,003 sqft condos
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $446,000 | — | $446,000 | $5,165 |
| 2024 | $459,000 | — | $459,000 | $5,003 |
| 2023 | $442,600 | — | $442,600 | $4,754 |
| 2022 | $425,500 | — | $425,500 | $4,629 |
| 2021 | $417,100 | — | $417,100 | $4,450 |
| 2020 | $363,800 | — | $363,800 | $3,842 |
| 2019 | $340,100 | — | $340,100 | $3,585 |
| 2018 | $323,800 | — | $323,800 | $3,393 |
| 2017 | $290,700 | — | $290,700 | $3,079 |
| 2016 | $274,300 | — | $274,300 | $3,017 |
Property facts
Year built
1900
Property type
condos
Stories
1
Beds
1
Baths
1
Living area
636 sqft
Lot size
1,003 sqft
ZIP code
02127
City
South Boston
Street
M St
Coordinates
42.33377, -71.03347
Comparable properties nearby
Frequently asked questions
When did 121 M St last sell?
No public-record sale is on file for 121 M St.
What is the current tax assessment for 121 M St?
The most recent total assessment for 121 M St (year 2025) is $446,000 with $5,165 in property tax.
When was 121 M St built?
121 M St was built in 1900.
How does 121 M St compare to others on M St?
We track 3 other properties on M St. Browse the list under "Other properties on M St" to compare beds, baths, and sale history.
What are the property facts for 121 M St?
121 M St is a 1 bed, 1 bath, 636 sqft, 1,003 sqft lot condos.
Is 121 M St a flip candidate?
No — 121 M St does not appear in our flips dataset.
Is 121 M St a tax-appeal candidate?
No — 121 M St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-0.4%
Implied 1-yr
-1.7%
2026 Q3
$1.02M
2026 Q4
$1.01M
ZIP 02127 — Median Price History + Forecast
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Geography