All balconies and roof terraces are paved with pre-cast concrete slabs faced with exposed Pen Lee granite aggregate, the same granite which makes up the concrete of the buildings themselves.
The balconies run along complete sides of buildings, and they are subdivided for individual flats by glazed fire screens. These screens can be opened to allow a fire escape along the balconies, but their main purpose is to give each flat privacy from people on the balconies next door.
The Barbican used to supply child guards to prevent young children straying out on to the balconies if the windows were left open. If you can get hold of one, it is slotted into the channel of the sliding door in the living rooms.
I am sure you won’t be tempted, but just in case: it is forbidden to hang your washing out on the balconies.
You cannot get rid of the original window boxes because they are specifically protected by the Grade II listing of the estate. You can get new window boxes from the Barbican Estate Office; but if you buy your own, you need to make sure they are in keeping with the standard window boxes.
Your lease requires you to keep your window boxes cultivated. This does not apply to tower block flats for some reason. The Barbican Estate Office can also give you a guide to growing plants in Barbican window boxes, written by a resident. (My fingers aren’t so much green as gangrene. I manage to kill off all the plants in my window boxes every year – even weeds cannot survive my nurturing efforts.)
Water is meant to drain off balconies into little drains. These can get blocked up with leaves and so on, and that can lead to leaks. The Barbican Estate Office recommend you clear away leaves and other blockages when they occur. (Really? I would never have thought of that on my own.)
If the flat downstairs suffers water damage because of something which it is your responsibility to do – like keeping the drain clear – then you will have to pay. If it’s due to some physical problem with the balcony or drain, then it should be the City Corporation’s responsibility as landlord and be covered by the service charge.
The balconies combine to form a fire escape round the building, so you are not meant to leave anything out on the balconies.