Similar considerations apply for someone wanting to install a charging outlet for an electric vehicle. The owners corporation could do some useful work assessing the capacity of the building’s supply to support likely increases in loads from air-con, EVs and possibly replacing gas hot water with heat-pump hot water systems. As we need to decarbonise over the next few decades, it is a logical consequence that gas and petrol need to be phased out in favour of electric equivalents powered from increasingly renewable generation.
In the case of EVs, it might work out that the building’s supply could cope if everyone had a single phase 10A outlet in their allocated parking space but not if everyone insisted on 32A three phase. Since 10A single phase trickle charging is enough to add almost 200km of range overnight, much faster charging rates are not justified in locations where cars are left for extended periods.
This reference https://www.wattblock.com/recharge.html discusses processes to phase in EV charging but could be applied to other loads such as air-con.