I don't know what the current situation is, but I got permission to keep a cat within my unit by taking the matter to the Tribunal (or whatever it is called these days). My argument was that, if I kept the cat entirely within my unit, it could not be regarded as a nuisance to others. The Tribunal initially denied my argument, but did a complete backflip when told that the space within the unit was mine alone, and so the proceedings within it were mine alone. I also hinted at the time that I might take action for having been misled in buying a strata unit, in that the by-law (at that time anyway) said that permission could not be unreasonably withheld. The Owners stated that a cat might stink up the place, but I replied that garbage would do the same thing if, for example, it were left lying around inside a unit, and that there would be an option in either case for them to take action. My cat never set foot outside of the door, and did not seem to mind at all. The balcony was a bit of a different issue, as I think it was officially common property, but you would have to check on the present guidelines.