I'm looking for a children's picture book that I read in the 80s, in the UK. It had illustrations of cross-sections of various animal houses, but I can't remember if it had a story or was just a collection of pictures.

One such book is "House by Mouse". It's quite small, paperback. Not much of a story: a mouse is an architect, on each page we see a house she has designed for a different animal, such as a spider's music studio (wires everywhere). On the final page we discover the mouse herself prefers camping (bit of a smug ending).

I liked this kind of picture book, but don't remember being too impressed by this one: Brambly Hedge or the awesome Trouble for Trumpets have better cross-sectional architecture.