23 Upton Street

South End, Boston · 23 UPTON ST · From recorded sales

23 Upton Street in South End, Boston has 4 recorded condominium sales dating back to 2021. Over the last five years, its median sale price is $2.6M and its median price per square foot is $1,394. Every figure below comes from recorded sales and transfers, not listings or estimates.

23 Upton Street is one of 890 condo buildings CURVE covers in South End, where the median building recorded $1,143 per square foot over the last five years. By that measure it ranks #28 of 179 in the neighborhood.

4Recorded sales
3Units
$2.6MMedian price (5 yr)
$1,394Median $/SF (5 yr)

The record

$10.1MTotal volume
$2.5MAll-time avg price
$3.0MHighest sale
1Resales
3.7 yrsAvg hold
-13.0%Avg appreciation
11/23/2021First close
8/6/2025Latest close

Sales activity

Recorded sales by year

Every sale recorded in 23 Upton Street, by year, with that year's median price.

2021: 2 recorded sales, median $2.5M2022: 1 recorded sale, median $2.6M2025: 1 recorded sale, median $2.6M20$2.6M$2.5M202120222025
Sales recorded
Median price

Sales by price point

How 4 recorded sales distribute across the price ladder.

$1M–$3M
3
$3M–$5M
1
4 sales classified

Unit mix sold

Bedroom count across recorded sales.

3 Beds
4

4 most recent sales

UnitDateBedsTypePrice$/SFChange
38/6/20253 BedsResale 1$2.6M$1,305/SFvs prior sale -13%
23/25/20223 BedsDeveloper Sale$2.6M$1,484/SF—
112/29/20213 BedsDeveloper Sale$1.9M$1,053/SF—
311/23/20213 BedsDeveloper Sale$3.0M$1,500/SF—

The full 23 Upton Street record

You are seeing the summary. A free account opens the full record.

  • All 4 recorded sales
  • Every unit's resale chain
  • Buyer and seller names
  • Financing and recording details
  • Condo docs + AI
  • Client-ready reports

Free plan. No credit card.

More buildings in South End

See all 890 South End buildings →

About this record

Where does this data come from?

Every sale shown is recorded with the registry of deeds, the legal record of the transaction, not a listing or an estimate. CURVE assembles, verifies and reconciles each one to the building and the unit.

How many sales are in 23 Upton Street?

4 recorded sales, going back to 2021, of which 1 are resales. This page shows the 4 most recent; a free account shows all of them.

What has 23 Upton Street done over time?

Resales in the building have changed hands at an average of -13.0% against their prior recorded price, after an average hold of 3.7 years.

What does the full record show?

The complete sales table, each unit's full chain of title, buyer and seller names, financing detail, the recording details behind every figure, the condo documents, and reports you can send to a client.

Open the full report free