Hi All, My building is 8 yrs old. Less than 30 lots. We have in each apartment an electrical board with switches for our own apartments so if there is a failure within we can address independantly. The larger mains including CP are in a switch room with access via an NMB key. Occasionally there are power failures and a simple call to Energy Australia will usually identify where the failure is. 
I would have no problem with giving permission for a lot to have control of the electrics within their lot. So long as it does not control the CP and that they would take on board costs and maintenance.
Cheers CBF