Fortis Building, Office building in downtown St. John's, Canada

The Fortis Building is a 12-storey high-rise in downtown St. John's, Newfoundland and Labrador, standing on Water Street. Fortis Properties, a subsidiary of Fortis Inc., occupies the building and in 2011 still planned to retrofit it to meet LEED Silver certification standards.

In January 2010 Fortis Properties, a subsidiary of Fortis Inc., proposed a $75 million expansion: a new 15-storey tower beside the existing 12-storey building, 382 parking spaces, an outdoor plaza and a pedestrian walkway over Water Street to the TD Building. The plan required demolishing four company buildings at 151–163 Water Street and Harbour Drive and amending the municipal plan for the height. Council members, heritage advocates and the public opposed it, and Fortis withdrew the application after two months. In 2011 the city approved a 12-storey building at a new west-end Water Street site, while Fortis still planned to retrofit the current building to LEED Silver standards.

The Fortis Building is the headquarters of Fortis Inc., the energy and utility company whose subsidiary Fortis Properties owns the tower. Its name on the downtown skyline ties the 12-storey structure to a firm that expanded from Newfoundland into utility markets across North America, and the building remains the company's base on Water Street.

The building sits in the heart of downtown with easy access to public transportation. Nearby you will find restaurants, shops, and services within a short walk.

Around 2010, plans emerged to connect this building to the TD Building via an elevated pedestrian bridge over Water Street. The project revealed ambitious ideas for reshaping downtown connections.