Toronto-Dominion Centre
Situated at the heart of the Financial District, the Toronto-Dominion (TD) Centre is a cluster of six towers with 4.3 million square feet of space and a capacity of 21,000 office tenants, making it one of the largest office complexes in Canada. Allen Lambert, Chairman of Toronto-Dominion Bank, along with Cemp Investments, entered into a partnership with Fairview Corporation (later Cadillac Fairview) to construct the bank's new headquarters.
Designed by renowned architect Ludwig Mies van der Rohe, with local firms of John B Parkin Associates and Bregman + Hamann as the associate architects, the TD Centre is an outstanding example of the International Style of architecture. Covered in bronze-tinted glass and black painted steel, the towers dwarfed the surrounding buildings and marked the epicentre of the financial district as well as the emergence of the high rise in Toronto.
Plaque via Alan L. Brown's site Toronto Plaques. Full page here.