The Kids from 47A (1973)

The Gathercole family live in number 47A, a flat in a small block. When the widowed mother is suddenly taken to hospital and hurried plans for an aunt to look after the children fall through, they decide to take care of themselves. When the Welfare authorities learn what is happening, a constant battle to prove they can take care of themselves, and avoid being but in the care of the local council commences.