CURVE Reports
Sign inStart free trial
Deed-verified record

The Quinn

South End, Boston · 380 Harrison Ave

The Quinn in South End, Boston has 112 recorded condominium sales dating back to 2021, a median sale price of $1.5M and an average of $1,555 per square foot. Every figure below is drawn from recorded deeds — not listings, not estimates.

The Quinn is one of 578 condo buildings CURVE covers in South End, where the median recorded price is $699 per square foot. By that measure it ranks #6 of 577 in the neighborhood.

112Recorded sales
101Units
$1.5MMedian price
$1,555Avg $/SF

The record

$213.1MTotal volume
$1.9MAvg sale price
$7.4MHighest sale
13Resales
3.5 yrsAvg hold
-1.2%Avg appreciation
8/17/2021First close
7/17/2026Latest close

Sales activity

Recorded sales by year

Every deed recorded in The Quinn, by year, with that year's median price.

320$2.9M$999K202120232026
Sales recorded
Median price

Sales by price point

How 112 recorded sales distribute across the price ladder.

Under $1M
32
$1M–$3M
64
$3M–$5M
12
$5M–$8M
4
112 sales classified

Unit mix sold

Bedroom count across recorded sales.

Studio
3
1 Bed
55
2 Beds
25
3 Beds
25
4 Beds
4

10 most recent sales

UnitDateBedsTypePrice$/SFChange
10077/17/20261 BedResale 1$1.0M$1,408+8%
PH2K6/10/20263 BedsResale 1$3.0M$1,816-9%
14J6/4/20264 BedsDeveloper Sale$5.4M$1,981
PH2E5/11/20263 BedsDeveloper Sale$3.0M$1,755
12F4/15/20263 BedsResale 1$3.7M$2,005-10%
14E4/15/20263 BedsDeveloper Sale$2.8M$1,638
12M4/6/20261 BedResale 1$1.3M$1,427+7%
PH2B4/2/20262 BedsResale 1$2.1M$1,538-19%
PH1G3/18/20263 BedsDeveloper Sale$3.5M$2,054
PH2G3/11/20263 BedsResale 1$3.5M$2,060-3%
102 more recorded sales in The QuinnPlus every unit's complete resale chain, buyer and seller names, financing, and the deed citation behind each figure.

The full Quinn record

You are seeing the summary. Members see the deeds.

All 112 recorded salesEvery unit's resale chainBuyer & seller namesFinancing & deed citationsCondo docs + AIClient-ready reports

No credit card required.

More buildings in South End

See all 578 South End buildings →

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 The Quinn?

112 recorded sales, going back to 2021, of which 13 are resales. This page shows the 10 most recent; members see all of them.

What has The Quinn done over time?

Resales in the building have changed hands at an average of -1.2% against their prior recorded price, after an average hold of 3.5 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.