Architect Raymond Moriyama transformed the 1904 school building into a public art gallery that adheres to international standards.

The Donald Forster Sculpture Park, initiated in 1983 on a 2.5-acre site near the building, stands as Canada's largest outdoor collection at an institution.

In 1926, the Ontario Agricultural College (affiliated with the University of Guelph since 1964) purchased a painting by Tom Thomson called The Drive (c. 1916), marking the start of the collection.

[2] Architect Raymond Moriyama was selected to transform the school into a gallery which would meet international standards.

A three-story skylighted gallery is suitable for showing large paintings, sculptures, oversized tapestries, and banners.

The lower level includes a facility for the proper care and storage of art as well as exhibition preparation.

Managed by the AGG Volunteer Association, the shop operates as a fundraising endeavour to support the gallery's activities and initiatives.