Seaport New Development Condo Buildings Explained

The Seaport new development market is defined by building scale, amenity depth, waterfront exposure, and pricing discipline.

Dino Confalone

Boston Luxury Real Estate Advisor

Written on January 15, 2026

Seaport buyers are not choosing between streets. They are choosing between buildings. Unit count, service level, amenities, and pricing strategy dictate how each project performs both at launch and on resale.

Echelon

Echelon is the largest residential project in the Seaport with roughly 447 units. It offers one of the deepest amenity packages in Boston including indoor and outdoor pools, multiple fitness facilities, resident lounges, rooftop spaces, and full time staffing.

Pricing sits in the middle of the Seaport range. Buyers gain lifestyle and infrastructure at the expense of scarcity.

22 Liberty And 50 Liberty

22 Liberty and 50 Liberty are true waterfront buildings with just over 100 units each. Amenities are focused on concierge, fitness, and parking rather than large shared spaces.

Lower density and direct water exposure support stronger pricing stability and resale liquidity.

Pier 4

Pier 4 is a boutique waterfront building with approximately 106 units. Its value is driven by privacy, views, and clean building identity.

Pricing typically commands a premium relative to larger Seaport buildings due to limited supply.

St. Regis Residences

St. Regis sits at the top of the Seaport pricing stack. With roughly 114 units, it offers full service hospitality amenities including concierge, spa, wellness facilities, and branded services.

The buyer pool is narrower, but pricing reflects exclusivity and service depth.

Looking Ahead: One Harbor Shore

One Harbor Shore is the next major waterfront project expected to compete at the high end of the Seaport market. Limited supply and harbor frontage will define its positioning.