21 Mercer St
Boston, MA 02127
2 bd 1 ba 840 sqft Lot 987 sqft single_family
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 | $618,400 | — | $618,400 | $7,161 |
| 2024 | $596,600 | — | $596,600 | $6,503 |
| 2023 | $584,500 | — | $584,500 | $6,278 |
| 2022 | $561,900 | — | $561,900 | $6,113 |
| 2021 | $550,900 | — | $550,900 | $5,878 |
| 2020 | $524,500 | — | $524,500 | $5,539 |
| 2019 | $490,300 | — | $490,300 | $5,168 |
| 2018 | $435,100 | — | $435,100 | $4,560 |
| 2017 | $406,700 | — | $406,700 | $4,307 |
| 2016 | $378,500 | — | $378,500 | $4,164 |
| 2015 | $352,900 | — | $352,900 | $4,274 |
| 2014 | $315,000 | — | $315,000 | $3,963 |
| 2006 | $274,900 | — | $274,900 | $3,057 |
| 2005 | $252,900 | — | $252,900 | $2,714 |
| 2004 | $240,800 | — | $240,800 | $2,444 |
| 2003 | $142,500 | — | $142,500 | $1,609 |
Property facts
Year built
—
Property type
single_family
Stories
—
Beds
2
Baths
1
Living area
840 sqft
Lot size
987 sqft
ZIP code
02127
City
Boston
Street
Mercer St
Coordinates
42.33305, -71.04918
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Mercer St last sell?
No public-record sale is on file for 21 Mercer St.
What is the current tax assessment for 21 Mercer St?
The most recent total assessment for 21 Mercer St (year 2025) is $618,400 with $7,161 in property tax.
When was 21 Mercer St built?
The year built for 21 Mercer St is not in our records.
How does 21 Mercer St compare to others on Mercer St?
We track 8 other properties on Mercer St. Browse the list under "Other properties on Mercer St" to compare beds, baths, and sale history.
What are the property facts for 21 Mercer St?
21 Mercer St is a 2 bed, 1 bath, 840 sqft, 987 sqft lot single_family.
Is 21 Mercer St a flip candidate?
No — 21 Mercer St does not appear in our flips dataset.
Is 21 Mercer St a tax-appeal candidate?
No — 21 Mercer 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
Explore nearby
Geography
Other properties on Mercer St