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Deed-verified record

21 Union Park Condominium

South End, Boston · 21 Union Pk

21 Union Park Condominium in South End, Boston has 3 recorded condominium sales dating back to 2009, a median sale price of $1.9M and an average of $1,114 per square foot. Every figure below is drawn from recorded deeds — not listings, not estimates.

21 Union Park Condominium is one of 303 condo buildings CURVE covers in South End, where the median recorded price is $719 per square foot. By that measure it ranks #25 of 302 in the neighborhood.

3Recorded sales
2Units
$1.9MMedian price
$1,114Avg $/SF

The record

$5.6MTotal volume
$1.9MAvg sale price
$2.6MHighest sale
1Resales
6.5 yrsAvg hold
+65.9%Avg appreciation
12/15/2009First close
6/1/2018Latest close

Sales activity

Recorded sales by year

Every deed recorded in 21 Union Park Condominium, by year, with that year's median price.

10$2.6M$1.1M200920162018
Sales recorded
Median price

Sales by price point

How 3 recorded sales distribute across the price ladder.

$1M–$3M
3
3 sales classified

Unit mix sold

Bedroom count across recorded sales.

3 Beds
3

3 most recent sales

UnitDateBedsTypePrice$/SFChange
36/1/20183 BedsDeveloper Sale$2.6M$1,360
26/30/20163 BedsResale 1$1.9M$1,236+66%
212/15/20093 BedsDeveloper Sale$1.1M$745

The full 21 Union Park Condominium record

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All 3 recorded salesEvery unit's resale chainBuyer & seller namesFinancing & deed citationsCondo docs + AIClient-ready reports

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More buildings in South End

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About this record

Where does this data come from?

Every sale shown is a deed recorded with the Boston registry — 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 21 Union Park Condominium?

3 recorded sales, going back to 2009, of which 1 are resales. This page shows the 3 most recent; members see all of them.

What has 21 Union Park Condominium done over time?

Resales in the building have changed hands at an average of +65.9% against their prior recorded price, after an average hold of 6.5 years.

What do members see that I don't?

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