Bay Square
Cambridge, Boston · 950 Massachusetts Avenue
Bay Square in Cambridge, Boston has 104 recorded condominium sales dating back to 1993, a median sale price of $680K and an average of $771 per square foot. Every figure below is drawn from recorded deeds — not listings, not estimates.
Bay Square is one of 200 condo buildings CURVE covers in Cambridge, where the median recorded price is $512 per square foot. By that measure it ranks #40 of 197 in the neighborhood.
The record
Sales activity
Recorded sales by year
Every deed recorded in Bay Square, by year, with that year's median price.
Sales by price point
How 104 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 |
|---|---|---|---|---|---|---|
| 505 | 9/1/2026 | 2 Beds | Resale 1 | $925K | $1,002 | — |
| 307 | 6/16/2026 | 2 Beds | Resale 4 | $880K | $891 | +29% |
| 418 | 6/12/2026 | 2 Beds | Resale 1 | $805K | $944 | — |
| 504 | 5/15/2026 | 2 Beds | Resale 1 | $890K | $946 | — |
| 512 | 3/10/2026 | 2 Beds | Resale 2 | $1.1M | $1,026 | +84% |
| C-3A | 12/24/2025 | 3 Beds | Resale 1 | $2.5M | $1,254 | — |
| 417 | 12/23/2025 | 2 Beds | Resale 1 | $750K | $871 | — |
| 106 | 11/14/2025 | 2 Beds | Resale 1 | $746K | $857 | — |
| 412 | 6/3/2025 | 2 Beds | Resale 1 | $1.2M | $1,162 | — |
| 405 | 11/25/2024 | 2 Beds | Resale 1 | $970K | $1,051 | — |
The full Bay Square 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 Bay Square?
104 recorded sales, going back to 1993, of which 103 are resales. This page shows the 10 most recent; members see all of them.
What has Bay Square done over time?
Resales in the building have changed hands at an average of +57.9% against their prior recorded price, after an average hold of 8.8 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.