The typical bungalow is just one storey, often with a large garden. Masses were built in the 1920s, many in seaside areas.
My grandparents had one with a huge garden - there were eventually at least 6 houses built on that plot.
Small terraced houses built a hundred or more years ago are often called cottages - maybe it sounds more appealing than 'a very small house'. ! I've seen some really tiny ones in SW London, built in the early 1900s. The average 2 bed flat has rather more space.
I forget who mentioned maisonettes, but I saw a lot of these when a daughter was looking to buy in SW London. There are masses of them, purpose built in (often) the very early 1900s, typically each with 2 bedrooms, a sitting room, separate kitchen and bathroom (more than once we saw the remains of the original geyser apparatus!), their own front door at street level, and each occupying either the whole of the ground or first floor. And most had their own separate small half of the garden.
It struck me that they were quite advanced at the time for what were evidently going to be rental properties for the far from wealthy - proper indoor bathrooms with hot water laid on, and no outdoor privies!