Mississauga has been screwing up along Hurontario between 403 and Matheson for a while now. It is as if they initially decided that Hurontario would be high density then medium-low density then high density, then medium-low density, then high, then high commercial, then medium-low.
Acorn Place has high rises in the backyard of detached homes and townhomes on Hurontario. Common sense would have the tallest buildings directly against Hurontario, townhouses further in, and lastly detached homes... not townhomes, tall buildings, detached homes.
Strathaven has high rises but next door and across the street is townhomes... but on Glenn Hawthorne they allowed a high-rise not fronting Hurontario.
It seems like it alternates between high-rise and low-rise rather than going the compromise route of mid-rise. With the precedent that has been set it would be hard to argue that anything really doesn't fit in. On a short stretch there is examples of every use except industrial... gas station, retail, high-rise residential, low-rise residential, office, and farm.