First ELEMENTARY under a "School-in-Podium" model to get funded in Ontario... somewhat similar to theYonge/Eg HIGH school in 2009..., but ELEMENTARY schools and HIGH schools have very different school-requirements because of the very-young (JK - age 4) that they need to accommodate in Elementary.
Stuff like more bathrooms / smaller bathrooms - but bigger classrooms, etc... and very different OUTDOOR space requirements for little people, etc.
CreateTO has one in-design at the HOUSING NOW site at the SCIENCE CENTRE station on Don Mills, there's an otion for up to 2 x "School-in-Podium" on the CHRISTIE LANDS in Etobicoke, and expect this to become the model for DOWNVIEW in North York, etc... too...
Building 2-3 Storey stand-alone TDSB schools near high-order transit in Toronto is a model that no longer works.