Hub on Causeway Office Tower

The Hub on Causeway Office Tower is a Contemporary skyscraper designed by Gensler, in association with Stantec, Solomon Codwell Buenz, and built between 2019 and 2022 in Boston, MA.

Its precise street address is 100 & 120 Causeway Street, Boston, MA. You can also find it on the map here.

The Hub on Causeway consists of a six-story structural steel podium that supports three towers:The Hub on Causeway Office Tower , a hotel and the Hub on Causeway Residential Tower.

This complex is built over a four-level underground parking garage with a capacity for 800 cars and several MBTA subway tunnels. At the center lies a five-story arcade, sheltered by a steel-and-glass canopy and flanked by restaurants, markets, and shops. It culminates in a grand entrance designed to direct pedestrians toward the North Station transportation hub.

Gensler was the architecture firm in charge of the architectural design, in association with Stantec, Solomon Codwell Buenz.

That being said, architecture is a complex discipline involving many professionals from different fields, without whom this building would have not been possible. We will surely be leaving out a lot of names here, but here is a list of the people we do know also played their part in making the Hub on Causeway Office Tower a reality:

• Le Messieur in charge of Structural Engineering
• Kone as the company in charge of the elevators system
• Boston Properties and Delaware North as the Main Developer
• Constantini in charge of MEP Engineering
• Copley Wolff Design Group in charge of Landscape Architecture

The Hub on Causeway Office Tower can be categorized as a Contemporary building.

The Hub on Causeway Office Tower uses a frame structure made of steel and concrete columns and reinforced concrete slabs.

A frame structure uses a combination of beams and columns to sustain the building's weight. The walls in this case are non-load bearing, which allows for more flexibility when distributing the interior spaces.

The facade uses a non-load bearing curtain wall system. This means the curtain wall modules are anchored to the building's structural frame, typically by being attached to the edge of the floor slabs. The curtain wall system connects to the slabs using brackets, anchors, and mullions, which transfer the loads imposed by wind and temperature changes, to the building's primary structural elements.

This setup allows the curtain wall to accommodate differential movement between the facade and the structural frame, such as thermal expansion, floor deflection, or sway from wind forces. This system's integration with the slab edges also allows for continuous insulation and weatherproofing layers.

From an aesthetic point of view, the facade features a continuous glass surface organized by two different orders of black frames and mullions. The structure is notable for its cantilevers in certain areas..