As of late January 2026, there are approximately 7 to 10 condos officially listed as “Under Agreement” or “Active Under Contract” in Boston’s Seaport District. This activity is occurring within a market that has roughly 45 to 50 active listings available for sale.

Current “Under Agreement” highlights include:

EchelonSeaport
: At least 3 units are currently under agreement or under contract at 133 and 135 Seaport Boulevard.
St. Regis Residences
: 1 unit (7D) is currently listed as “Active Under Contract”. Pier 4
: 1 unit (3I) is marked as “Under Agreement” with a list price of $3.495 million.
Other Locations: Several units in buildings like Dockside Place and 249 A Street are also under agreement.

Market Context for Seaport Condo Sale Markert in 2026

Sales Velocity: Despite a generally low inventory, well-priced units are moving quickly. Properties that went under agreement in early January typically reached the closing stage by mid-month.
Inventory Constraints: Total inventory in the Seaport is lower than it was in early 2025, which has increased competition for available luxury units.
Developer Inventory: While public MLS data shows limited “Under Agreement” units, some major developments like the St. Regis Residences still have significant unsold developer inventory (roughly 47 out of 114 units) that may not all be reflected in active “Under Agreement” counts.
Seaport Condos for Sale
Would you like to see a comparison of recent sale prices versus original list prices for these Seaport buildings visit Ford Realty or bostoreb.com website.