A hard cover children’s story book (thought it was by Helen Oxenbury but can’t find it) about a naughty child who manages to grow a tree inside the house that grows out and through the whole house. Think it was one of those “two colour” story books before they had full colour printing ability. Probably intended for 6 -8 year olds.
I’m pretty sure this is not right, but “You Ought To See Herbert’s House” by Doris Herold Lund has a tree growing in the living room (and through the house).
https://www.amazon.co.uk/You-Ought-See-Herberts-House/dp/0531025950