The last time I read the city by law, the max height of fence is 2.0M. But there are lots of fine prints regarding corner lots which I didn't understand. Also, trees and plants as fence do not fall under this catagory.
I heard that if your neighbour's house is not built, you can not build your fence yet. Is it true? I didn't find it in the by law, but vaguely remember so from the purchase agreement when we bought the house (new).