Handel Architects has completed a skyscraper in Boston with Passive House-certified office spaces, which its developers say is the largest office to reach that certification in the world.

Developed by Millennium Partners, the 1.8 million-square-foot (167,00 million square metres) Winthrop Center is located in Boston's Financial District and reaches 691 feet high (210 metres) with over 62 storeys of offices and apartments.

Handel Architects have completed a skyscraper in Boston

It consists of a large, public passageway at its base with a "pleated" curtain wall facade topped with a rippled crown.

A curved and rectangular volume is affixed to either side of the tower and indicates the building's office floors, which sit in the building's core.

It is the largest Passive House-certified office building in the world, according to the team

317 residential units make up the top floors, while retail, restaurants and gathering spaces are incorporated throughout the public ground-level passageway called "The Connector".

Handel Architects (Handel) organized the building following a traditional "tower on a podium" scheme while taking cues from the neighbouring Financial District art deco-era buildings.