U of T has an interactive map where you can check off which bathrooms you may be looking for such as single user, accessible etc.
If you see a washroom on campus that is not on the map you can email the Sexual and Gender Diversity Office (SGDO) at sgdo@utoronto.ca
The closest accessible gender neutral washrooms to the DIC is in the University College Union building on the east side of St. George St across from Cafe Reznikoff.