21 Chelsea St
Boston, MA 02128
1 bd 1 ba 668 sqft Built 1999 Lot 668 sqft condos
Most recent sale
$247,186
Jul 21, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Jul 21, 2022 | Sold | $247,186 | MLS #72980982 |
| May 12, 2022 | Listed | $247,186 | MLS #72980982 |
| Jan 11, 2017 | Sold | $180,682 | MLS #72060307 |
| Aug 31, 2016 | Listed | $185,500 | MLS #72060307 |
| Sep 14, 2015 | Listing removed | $173,000 | MLSPIN |
| Sep 3, 2015 | Listed | $173,000 | MLS #71898459 |
| Aug 29, 2013 | Sold | $139,000 | MLS #71330690 |
| Jan 24, 2012 | Listed | $159,900 | MLS #71330690 |
| Feb 27, 2001 | Sold | $73,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $272,500 | — | $272,500 | $3,156 |
| 2024 | $259,500 | — | $259,500 | $2,829 |
| 2023 | $247,186 | — | $247,186 | $2,655 |
| 2022 | $219,700 | — | $219,700 | $2,390 |
| 2021 | $209,200 | — | $209,200 | $2,232 |
| 2020 | $199,200 | — | $199,200 | $2,104 |
| 2019 | $189,700 | — | $189,700 | $1,999 |
| 2018 | $180,681 | — | $180,681 | $1,894 |
| 2017 | $144,500 | — | $144,500 | $1,530 |
| 2016 | $137,600 | — | $137,600 | $1,514 |
| 2015 | $131,000 | — | $131,000 | $1,586 |
| 2014 | $124,800 | — | $124,800 | $1,570 |
| 2006 | $84,500 | — | $84,500 | $940 |
| 2005 | $80,500 | — | $80,500 | $864 |
| 2004 | $76,700 | — | $76,700 | $779 |
| 2003 | $62,100 | — | $62,100 | $701 |
Property facts
Year built
1999
Property type
condos
Stories
1
Beds
1
Baths
1
Living area
668 sqft
Lot size
668 sqft
ZIP code
02128
City
Boston
Street
Chelsea St
Coordinates
42.37045, -71.03790
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsInvestment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$1,937
Gross rental yield
9.40%
Implied cap rate
6.11%
Trend-extrapolated value
—
Frequently asked questions
When did 21 Chelsea St last sell?
21 Chelsea St most recently sold on Jul 21, 2022 for $247,186.
What is the current tax assessment for 21 Chelsea St?
The most recent total assessment for 21 Chelsea St (year 2025) is $272,500 with $3,156 in property tax.
How does 21 Chelsea St's assessment compare to its last sale price?
The current assessment is 10.2% above the last sale price of $247,186.
When was 21 Chelsea St built?
21 Chelsea St was built in 1999.
How does 21 Chelsea St compare to others on Chelsea St?
We track 8 other properties on Chelsea St. Browse the list under "Other properties on Chelsea St" to compare beds, baths, and sale history.
What are the property facts for 21 Chelsea St?
21 Chelsea St is a 1 bed, 1 bath, 668 sqft, 668 sqft lot condos.
Is 21 Chelsea St a flip candidate?
No — 21 Chelsea St does not appear in our flips dataset.
Is 21 Chelsea St a tax-appeal candidate?
No — 21 Chelsea 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
+0.2%
Implied 1-yr
+0.7%
2026 Q3
$735.9K
2026 Q4
$737.1K
ZIP 02128 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Chelsea St