Unfortunately not that easy. A double storey place would even be worse(as access to wires and pipes is much more difficult). Each half would need there electrical circuits seperated all the way back to the switchboard. Then you would need to check local suppy authority on what was allowed. You can buy your own meter , than work it out yourself. Get a good local electrical contractor onboard. Plumbing could even be worse, as it can be harder to seperate supplies. Again, get in touch with a good(not cheap) LOCAL plumber.