Wellington Building

The original structure was designed by D. Everett Waid; in 1959, the more restrained classical east wing of the building was added.

[citation needed] Since its rehabilitation in 2016, the building is occupied by the House of Commons and serves several parliamentary functions.

Historically, the building there of the Canadian headquarters of a large American firm coincides with the emergence of Ottawa as a regional commercial centre.

In 2010, the building was closed for extensive rehabilitation work, which included asbestos abatement, seismic reinforcement, and the modernization of its interior spaces and systems to accommodate MP Offices, committee rooms and a library.

Historic preservation work included the conservation and restoration of the building's significant heritage features, such as the valuable Byzantine-style mosaic in its vestibule, and the long-lost decorative cast iron canopy on Wellington Street.