pending the opinion of the site sparky.

Welcome to the forum.

I think that before you spend any time on this, the sentence above points to the first hurdle to be addressed. To be effective, both of those posts would need to have sufficient power to provide 7kW to each proposed charge point. And if they are just cabled with sufficient to run lamps, it's unlikely to be enough. Otherwise, the power to each EV may be very low, meaning that very lengthy charge times would be needed. Which then leads on to problems of car congestion when a charge session is very long.

Once you have that information, there may be options available.

 

Fair point - thanks for the reply.

 

How much would a communal duct to the assigned carpark cost, I wonder? Can you find out before you go down the lamppost route? (You're still going to pay commercial rates for the lamppost chargers.)

If you could get that put in, neighbours could thread their own cables through it as they bought EV's.

 

There's probably not capacity on the cables for the lights if they are run off a distribution board on site(unless they are pre led where the cable may have been sized for more power).

Depending on how the supplies are run to the flats you may be able to get a duct run from a parking space to an electrical room and connected to your supply there.