The Somerset
Back Bay, Boston · 400-416 Commonwealth Ave
The Somerset in Back Bay, Boston has 135 recorded condominium sales dating back to 1997, a median sale price of $675K and an average of $751 per square foot. Every figure below is drawn from recorded deeds — not listings, not estimates.
The Somerset is one of 497 condo buildings CURVE covers in Back Bay, where the median recorded price is $781 per square foot. By that measure it ranks #338 of 494 in the neighborhood.
The record
Sales activity
Recorded sales by year
Every deed recorded in The Somerset, by year, with that year's median price.
Sales by price point
How 135 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 |
|---|---|---|---|---|---|---|
| 611 | 9/3/2026 | 2 Beds | Resale 4 | $1.2M | $1,042 | +3% |
| 312 | 8/31/2026 | 1 Bed | Resale 2 | $738K | $962 | +37% |
| 314 | 8/31/2026 | 1 Bed | Developer Sale | $680K | $947 | — |
| 218 | 8/12/2026 | 1 Bed | Developer Sale | $145K | $219 | — |
| 301 | 6/15/2026 | 2 Beds | Developer Sale | $2.4M | $1,004 | — |
| 706 | 4/23/2026 | 1 Bed | Resale 1 | $930K | $990 | +4% |
| 317 | 3/17/2026 | 1 Bed | Resale 1 | $1.2M | $1,153 | +37% |
| 212 | 11/24/2025 | 1 Bed | Resale 2 | $730K | $952 | -2% |
| 316 | 8/5/2025 | 1 Bed | Resale 2 | $885K | $1,188 | +43% |
| 311 | 6/6/2025 | 1 Bed | Developer Sale | $795K | $1,014 | — |
The full Somerset record
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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 The Somerset?
135 recorded sales, going back to 1997, of which 65 are resales. This page shows the 10 most recent; members see all of them.
What has The Somerset done over time?
Resales in the building have changed hands at an average of +35.6% against their prior recorded price, after an average hold of 7.0 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.