It is located south of the Art Gallery of Ontario, next to the Ontario College of Art and Design University (OCADU) and north of University Settlement House, at the north end of John Street.

Historically, the park was the backyard of The Grange, a manor that was later expanded and became the Art Gallery of Ontario.

[8] By then, Grange Park had deteriorated because of restrictions in City funding resulting in uneven pathways, dilapidated benches and playground equipment, many areas of bare ground, and poorly-maintained trees.

As part of the renovation, the Henry Moore sculpture Large Two Formspark was moved from the corner of Dundas and McCaul Streets to become the centrepiece of the park.

[3] The AGO, the City of Toronto, the Weston Family, and various community groups jointly fininanced the renovation.