23 Sullivan St
Boston, MA 02129
2 bd 1 ba 756 sqft Built 1860 condos
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 | $559,800 | — | $559,800 | $6,482 |
| 2024 | $582,200 | — | $582,200 | $6,346 |
| 2023 | $564,800 | — | $564,800 | $6,066 |
| 2022 | $543,100 | — | $543,100 | $5,909 |
| 2021 | $543,100 | — | $543,100 | $5,795 |
| 2020 | $489,900 | — | $489,900 | $5,173 |
| 2019 | $437,400 | — | $437,400 | $4,610 |
| 2018 | $416,400 | — | $416,400 | $4,364 |
| 2017 | $400,500 | — | $400,500 | $4,241 |
| 2016 | $388,800 | — | $388,800 | $4,277 |
| 2015 | $338,900 | — | $338,900 | $4,104 |
Property facts
Year built
1860
Property type
condos
Stories
—
Beds
2
Baths
1
Living area
756 sqft
Lot size
—
ZIP code
02129
City
Boston
Street
Sullivan St
Coordinates
42.37809, -71.06641
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 23 Sullivan St last sell?
No public-record sale is on file for 23 Sullivan St.
What is the current tax assessment for 23 Sullivan St?
The most recent total assessment for 23 Sullivan St (year 2025) is $559,800 with $6,482 in property tax.
When was 23 Sullivan St built?
23 Sullivan St was built in 1860.
How does 23 Sullivan St compare to others on Sullivan St?
We track 8 other properties on Sullivan St. Browse the list under "Other properties on Sullivan St" to compare beds, baths, and sale history.
What are the property facts for 23 Sullivan St?
23 Sullivan St is a 2 bed, 1 bath, 756 sqft condos.
Is 23 Sullivan St a flip candidate?
No — 23 Sullivan St does not appear in our flips dataset.
Is 23 Sullivan St a tax-appeal candidate?
No — 23 Sullivan 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 Sullivan St