9A Monument Sq
Boston, MA 02129
3 bd 4 ba 2,238 sqft Built 1858 Lot 2,743 sqft condos
Most recent sale
$1,200,000
Aug 13, 2014
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Apr 17, 2024 | Listed | $2,195,000 | MLSPIN |
| Aug 13, 2014 | Sold | $1,200,000 | MLSPIN |
| Jun 20, 2014 | Listed | $1,195,000 | MLSPIN |
| Jun 16, 2014 | Listing removed | $1,200,000 | MLSPIN |
| Mar 13, 2014 | Price changed | $1,200,000 | MLSPIN |
| Mar 12, 2014 | Price changed | $1,250,000 | MLSPIN |
| Aug 19, 2013 | Listed | $1,300,000 | MLSPIN |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,751,200 | — | $1,751,200 | $20,279 |
| 2024 | $1,683,200 | — | $1,683,200 | $18,347 |
| 2023 | $1,601,700 | — | $1,601,700 | $17,202 |
| 2022 | $1,539,800 | — | $1,539,800 | $16,753 |
| 2021 | $1,509,600 | — | $1,509,600 | $16,107 |
| 2020 | $1,599,200 | — | $1,599,200 | $16,888 |
| 2019 | $1,494,000 | — | $1,494,000 | $15,747 |
| 2018 | $1,423,000 | — | $1,423,000 | $14,913 |
| 2017 | $1,380,900 | — | $1,380,900 | $14,624 |
| 2016 | $1,315,200 | — | $1,315,200 | $14,467 |
| 2015 | $1,050,500 | — | $1,050,500 | $12,722 |
Property facts
Year built
1858
Property type
condos
Stories
2
Beds
3
Baths
4
Living area
2,238 sqft
Lot size
2,743 sqft
ZIP code
02129
City
Boston
Street
Monument Sq
Coordinates
42.37623, -71.05963
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 9A Monument Sq last sell?
9A Monument Sq most recently sold on Aug 13, 2014 for $1,200,000.
What is the current tax assessment for 9A Monument Sq?
The most recent total assessment for 9A Monument Sq (year 2025) is $1,751,200 with $20,279 in property tax.
How does 9A Monument Sq's assessment compare to its last sale price?
The current assessment is 45.9% above the last sale price of $1,200,000.
When was 9A Monument Sq built?
9A Monument Sq was built in 1858.
How does 9A Monument Sq compare to others on Monument Sq?
We track 8 other properties on Monument Sq. Browse the list under "Other properties on Monument Sq" to compare beds, baths, and sale history.
What are the property facts for 9A Monument Sq?
9A Monument Sq is a 3 bed, 4 bath, 2,238 sqft, 2,743 sqft lot condos.
Is 9A Monument Sq a flip candidate?
No — 9A Monument Sq does not appear in our flips dataset.
Is 9A Monument Sq a tax-appeal candidate?
No — 9A Monument Sq 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 Monument Sq