The Charles Sumner House
Beacon Hill, Boston · 20 Hancock ST
The Charles Sumner House in Beacon Hill, Boston has 17 recorded condominium sales dating back to 2000. Every figure below is drawn from recorded deeds — not listings, not estimates.
The record
Sales activity
Recorded sales by year
Every deed recorded in The Charles Sumner House, by year, with that year's median price.
Sales by price point
How 17 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 | 3/3/2026 | 2 Beds | Resale 5 | $1.3M | $1,446 | +22% |
| 4 | 6/16/2025 | 2 Beds | Resale 3 | $1.3M | $1,274 | +53% |
| 3 | 12/3/2020 | 2 Beds | Resale 4 | $980K | $1,054 | +10% |
| 2 | 8/7/2020 | 2 Beds | Resale 4 | $1.1M | $1,182 | +32% |
| 3 | 6/30/2014 | 2 Beds | Resale 3 | $888K | $955 | +34% |
| 2 | 7/15/2013 | 2 Beds | Resale 3 | $830K | $892 | +9% |
| 4 | 3/1/2013 | 2 Beds | Resale 2 | $875K | $833 | +12% |
| 1 | 6/30/2011 | 3 Beds | Resale 1 | $1.9M | $855 | +90% |
| 2 | 6/2/2010 | 2 Beds | Resale 2 | $759K | $816 | +15% |
| 3 | 2/18/2009 | 2 Beds | Resale 2 | $661K | $711 | +4% |
The full Charles Sumner House record
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More buildings in Beacon Hill
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 Charles Sumner House?
17 recorded sales, going back to 2000, of which 13 are resales. This page shows the 10 most recent; members see all of them.
What has The Charles Sumner House done over time?
Resales in the building have changed hands at an average of +25.6% against their prior recorded price, after an average hold of 6.2 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.