421 Main St
Boston, MA 02129
2 bd 2 ba 900 sqft Built 1899 condos
Most recent sale
$700,000
Nov 15, 2021
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Jun 18, 2025 | Sold | $844,000 | MLSPIN |
| Apr 29, 2025 | Listed | $824,000 | MLSPIN |
| Nov 15, 2021 | Sold | $700,000 | MLS #72895601 |
| Sep 15, 2021 | Listed | $725,000 | MLS #72895601 |
| Aug 29, 2013 | Sold | $411,000 | MLS #71351793 |
| Apr 26, 2012 | Price changed | $419,000 | MLS #71351793 |
| Mar 14, 2012 | Listed | $427,000 | MLS #71351793 |
| May 26, 2006 | Sold | $435,000 | MLS #70352419 |
| Mar 23, 2006 | Listed | $445,000 | MLS #70352419 |
| Mar 20, 2006 | Listing removed | $449,000 | MLSPIN |
| Aug 23, 2005 | Listed | $449,000 | MLS #70246781 |
| Jun 19, 2003 | Sold | $400,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $765,200 | — | $765,200 | $8,861 |
| 2024 | $744,600 | — | $744,600 | $8,116 |
| 2023 | $722,400 | — | $722,400 | $7,759 |
| 2022 | $662,000 | — | $662,000 | $7,203 |
| 2021 | $662,000 | — | $662,000 | $7,064 |
| 2020 | $625,500 | — | $625,500 | $6,605 |
| 2019 | $558,400 | — | $558,400 | $5,886 |
| 2018 | $531,600 | — | $531,600 | $5,571 |
| 2017 | $511,300 | — | $511,300 | $5,415 |
| 2016 | $496,400 | — | $496,400 | $5,460 |
| 2015 | $432,400 | — | $432,400 | $5,236 |
| 2014 | $404,700 | — | $404,700 | $5,091 |
| 2006 | $370,900 | — | $370,900 | $4,124 |
| 2005 | $366,600 | — | $366,600 | $3,934 |
Property facts
Year built
1899
Property type
condos
Stories
1
Beds
2
Baths
2
Living area
900 sqft
Lot size
—
ZIP code
02129
City
Boston
Street
Main St
Coordinates
42.38111, -71.07045
Comparable properties nearby
Investment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$2,610
Gross rental yield
4.47%
Implied cap rate
2.91%
Trend-extrapolated value
—
Frequently asked questions
When did 421 Main St last sell?
421 Main St most recently sold on Nov 15, 2021 for $700,000.
What is the current tax assessment for 421 Main St?
The most recent total assessment for 421 Main St (year 2025) is $765,200 with $8,861 in property tax.
How does 421 Main St's assessment compare to its last sale price?
The current assessment is 9.3% above the last sale price of $700,000.
When was 421 Main St built?
421 Main St was built in 1899.
How does 421 Main St compare to others on Main St?
We track 8 other properties on Main St. Browse the list under "Other properties on Main St" to compare beds, baths, and sale history.
What are the property facts for 421 Main St?
421 Main St is a 2 bed, 2 bath, 900 sqft condos.
Is 421 Main St a flip candidate?
No — 421 Main St does not appear in our flips dataset.
Is 421 Main St a tax-appeal candidate?
No — 421 Main 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
-2.0%
Implied 1-yr
-8.2%
2026 Q3
$977.9K
2026 Q4
$954.8K
ZIP 02129 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Main St