This is where most international students stay, at least in the first year. There are other on-campus accommodations like family housing and co-op housing as well but since I stay here, here are the highlights of the graduate house :
This is an ideal place to get started as an international student since it is already furnished. It is also a great place to build an initial network and meet new people.
The grad house is a five minute walk from Rotman which saves a lot on travel cost and time especially during winters.
You can find detailed information about the grad house here