Oh, they will have needed to run better power and water, unless Alberta building code is more lax than BC.

But that’s not new. My mom loves in an office/residential convert from 1992, and it’s a mess: 4 units in an old cop shop, and the single fuse box is amid the storage lockers, and she shares a single 15A run with two neighbours.

Run the AC while the neighbour runs his and all three apartments go offline.