The Committee of Adjustment is Toronto's main land planning exemption approval body. They review applications by landowners asking for exemptions from the City's land planning rules.
The Committee of Adjustment for Toronto doesn't make very many decisions available online. Of the 23 days that the Toronto & East York Committee of Adjustment met to review applications only three are available on the City's website (the last three days of hearings in 2014).
I merged the decisions for the Toronto & East York Committee of Adjustment into a large PDF and searched for "is approved" and "is refused" (the only two outcomes). There were 152 "is approved" decisions and 16 "is refused decisions". That's a 90.5% approve rate - higher than I would have expected.