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Duplex or perplexed: What is a maisonette anyway?

4 min read
Oct '25 • by Jodi Nicholls

Quick summary

A maisonette is a two-storey flat with its own front door, often over shops or garages, making it closer to a house but still technically a flat. It offers privacy and sometimes a small outdoor space, but you can’t usually extend without planning permission, and it’s typically leasehold. Think of it as a hybrid—more private than a flat but not quite a house.

Everyone knows the difference between a flat and a house, but what about their lesser-known cousin, the humble maisonette? The linguists among us could make an informed guess considering the word maisonette derives from the French term ‘petite maison,’ which means ‘small house.’ However, although this helps define a maisonette, the question of whether a maisonette is a house or a flat is a matter of perspective.

What is the purpose of a maisonette?

Introduced in the 1960s and 1970s, maisonettes were a way to promote higher density living in the suburbs – way before blocks of flats were as common as they are now.

A maisonette is defined as a two-storey flat with your own front door. This means you can directly exit your home to the outside world instead of sharing a corridor with other people in your block.

Maisonettes are also referred to as ‘duplexes,’ which is their American title. However, a great way to think of maisonettes is to envisage a house on stilts. This is because they’re often located over shops, garages, and even other maisonettes.

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