The Simpson Tower, located at 401 Bay Street, is the 38th-tallest building in Toronto, Ontario, Canada.[1][2] Completed in 1968 by John B. Parkin Associates and Bregman & Hamann, as the headquarters of the Simpsons department store company, it has 33 floors and is 144 m high.[1] In 1978, as part of a corporate takeover, the Simpson Tower became the property of the Hudson's Bay Company. The building was the head office of HBC and also housed the head office of subsidiary Hudson's Bay until 2025 with the liquidation of the department store.[3][4] The building includes event venue Arcadian Court and is integrated with the