The 391 Commonwealth
Back Bay, Boston · 391 COMMONWEALTH AV
The 391 Commonwealth in Back Bay, Boston has 12 recorded condominium sales dating back to 2000, a median sale price of $693K and an average of $690 per square foot. Every figure below is drawn from recorded deeds — not listings, not estimates.
The 391 Commonwealth is one of 428 condo buildings CURVE covers in Back Bay, where the median recorded price is $769 per square foot. By that measure it ranks #314 of 425 in the neighborhood.
The record
Sales activity
Recorded sales by year
Every deed recorded in The 391 Commonwealth, by year, with that year's median price.
Sales by price point
How 12 recorded sales distribute across the price ladder.
Unit mix sold
Bedroom count across recorded sales.
10 most recent sales
| Unit | Date | Beds | Type | Price | $/SF | Change |
|---|---|---|---|---|---|---|
| 2 | 5/31/2019 | 2 Beds | Resale 3 | $1.5M | $1,098 | +76% |
| 1 | 10/7/2015 | 2 Beds | Resale 3 | $750K | $732 | +9% |
| 5 | 8/27/2014 | 1 Bed | Resale 3 | $334K | $878 | +29% |
| 1 | 12/8/2010 | 2 Beds | Resale 2 | $685K | $668 | -4% |
| 2 | 12/1/2010 | 2 Beds | Resale 2 | $875K | $624 | +1% |
| 5 | 8/3/2009 | 1 Bed | Resale 2 | $260K | $682 | +6% |
| 1 | 4/23/2009 | 2 Beds | Resale 1 | $711K | $694 | +2% |
| 1 | 7/27/2005 | 2 Beds | Developer Sale | $700K | $683 | — |
| 2 | 2/25/2005 | 2 Beds | Resale 1 | $870K | $620 | +43% |
| 5 | 7/9/2004 | 1 Bed | Resale 1 | $246K | $645 | +24% |
The full 391 Commonwealth record
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More buildings in Back Bay
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 391 Commonwealth?
12 recorded sales, going back to 2000, of which 9 are resales. This page shows the 10 most recent; members see all of them.
What has The 391 Commonwealth done over time?
Resales in the building have changed hands at an average of +20.5% against their prior recorded price, after an average hold of 4.7 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.