No, not in NSW, VIC, QLD or the ACT. Recent court decisions and legislative changes mean blanket pet bans are unenforceable in most states — owners must allow pets unless there's a genuine reason to refuse a specific animal.
Blanket pet bans were once standard in Australian strata schemes. After a string of court decisions and legislative reforms since 2020, they're now unenforceable in most states — and committees that try to keep them on the books are routinely overturned at tribunal.
The owners corporation can still impose reasonable conditions (size limits in lifts, noise rules, cleaning up after animals) and refuse a specific pet for a good reason (aggression, allergies of nearby owners, prior misbehaviour). A blanket 'no pets' by-law is almost always struck down.
Compare written fee proposals from strata managers covering your building — free for owners corporations, no obligation.