9 Prospect St
Boston, MA 02129
2 bd 3 ba 1,831 sqft Built 2017 condos
Most recent sale
$1,180,000
Nov 19, 2021
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Nov 19, 2021 | Sold | $1,180,000 | MLS #72898501 |
| Sep 22, 2021 | Listed | $1,199,000 | MLS #221836 |
| Apr 27, 2020 | Listing removed | $1,245,000 | MLSPIN |
| Mar 16, 2020 | Sold | $1,150,000 | MLS #72615665 |
| Mar 23, 2017 | Sold | $925,000 | MLS #72022374 |
| Dec 2, 2016 | Price changed | $995,000 | MLS #72022374 |
| Sep 22, 2016 | Price changed | $1,089,000 | MLS #72022374 |
| Jul 13, 2016 | Price changed | $1,199,000 | MLS #72022374 |
| Jun 13, 2016 | Listed | $1,300,000 | MLS #72022374 |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,138,900 | — | $1,138,900 | $13,188 |
| 2024 | $1,108,200 | — | $1,108,200 | $12,079 |
| 2023 | $1,054,500 | — | $1,054,500 | $11,325 |
| 2022 | $1,013,800 | — | $1,013,800 | $11,030 |
| 2021 | $993,900 | — | $993,900 | $10,605 |
| 2020 | $1,091,400 | — | $1,091,400 | $11,525 |
| 2019 | $1,019,600 | — | $1,019,600 | $10,747 |
Property facts
Year built
2017
Property type
condos
Stories
—
Beds
2
Baths
3
Living area
1,831 sqft
Lot size
—
ZIP code
02129
City
Boston
Street
Prospect St
Coordinates
42.37510, -71.05744
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
$5,310
Gross rental yield
5.40%
Implied cap rate
3.51%
Trend-extrapolated value
—
Frequently asked questions
When did 9 Prospect St last sell?
9 Prospect St most recently sold on Nov 19, 2021 for $1,180,000.
What is the current tax assessment for 9 Prospect St?
The most recent total assessment for 9 Prospect St (year 2025) is $1,138,900 with $13,188 in property tax.
How does 9 Prospect St's assessment compare to its last sale price?
The current assessment is 3.5% below the last sale price of $1,180,000.
When was 9 Prospect St built?
9 Prospect St was built in 2017.
How does 9 Prospect St compare to others on Prospect St?
We track 8 other properties on Prospect St. Browse the list under "Other properties on Prospect St" to compare beds, baths, and sale history.
What are the property facts for 9 Prospect St?
9 Prospect St is a 2 bed, 3 bath, 1,831 sqft condos.
Is 9 Prospect St a flip candidate?
No — 9 Prospect St does not appear in our flips dataset.
Is 9 Prospect St a tax-appeal candidate?
No — 9 Prospect 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 Prospect St