The park is built on quays once used by ships berthing in Toronto's Inner Harbour.
The park consists of two sections:
HTO Park West is built on the eastern half of Maple Leaf Quay
HTO Park East is built on the old Peter Street Slip
The two quays are concrete man-made infill during the 1920s with the project completed by 1929. The eastern portion was home to Maple Leaf Mills Silos until 1983. The western half was home to a smaller industrial business with a small office structure. During the 1980s, a condo project (now known as Harbour Terrace) was built on part of Maple Leaf Quay while the rest stood empty as a parking lot. The eastern portion lay empty in the 1980s and 1990s.
Name
HTO is a play on H 2O, the chemical formula for water, since "TO" is commonly used to refer to Toronto and it is a waterfront park.
In 2016, HTO Park was included in The Landscape Performance Series Case Study Briefs, a database of over 200 exemplary built projects with quantified environmental, economic and social benefits.[2]