When hunting for a property in the UK, you might stumble across the term maisonette—a word that pops up often but isn’t always crystal clear. It’s a versatile label that shifts meaning depending on where you are in the world, but in the UK, it describes a distinctive type of home that blends the perks of a flat with a house-like vibe. Curious about what sets maisonettes apart and how they can evolve with your needs? Let’s break it down, including their potential for extensions.
What’s a Maisonette, Anyway?
Picture this: a self-contained living space, usually spread over two floors, with its own front door opening straight onto the street. That’s the classic UK maisonette. The name comes from the French maisonnette, meaning “little house,” and it’s easy to see why—it’s like a mini home of your own. Unlike standard flats, which share a communal entrance, maisonettes offer direct access, setting them apart in both feel and function.
You’ll find them in various forms across the UK. Some are purpose-built in two-storey terraces or semi-detached setups, common in suburban neighbourhoods. Others emerge from house conversions, splitting a larger building into separate units. In modern times, the term has stretched to include two-level flats within bigger blocks, often reached via an external balcony. Think Victorian gems in east London’s Walthamstow—dual entrances, one leading to a lower maisonette with a garden, the other to an upper unit with its own stairs—or post-war designs in high-rise estates.
The Pros and Cons
Maisonettes strike a sweet spot between flats and houses. That private entrance? It’s a game-changer—more privacy, simpler deliveries, and the chance to install your own security setup. Upper maisonettes might even come with a balcony or rear garden access, while lower ones often boast outdoor space too. Compared to flats, there’s less hassle over shared hallways or stairwells, and they tend to offer more storage and square footage at a price that’s gentler than a full house—perfect for stepping up from a single-level flat.
But it’s not all rosy. Like flats, maisonettes can mean dealing with noisy neighbours or, in busy areas, wafts from nearby takeaways or shops below. Maintenance of the building’s exterior still requires neighbourly cooperation, so good vibes with the folks next door are a must.
Room to Stretch: Extending Your Maisonette

One of the biggest draws of a maisonette—especially in older Victorian properties—is the chance to expand. For upper units, the roof space is a goldmine. Converting the loft into an extra bedroom is a popular move, either by tweaking the existing area or adding a dormer extension for more height, light, and usable space. Downstairs, lower maisonettes with gardens can grow outward—think a rear extension for a bigger kitchen or a side-return addition for a dining nook.
Here’s the catch: unlike houses, maisonettes don’t enjoy permitted development rights. Any extension means a planning application—typically an 8-week process with the local council—and freeholder approval via a Licence for Alterations. If the loft’s deemed a shared space, expect a fee, though consent is rarely denied outright.
Leasehold vs. Freehold: What’s the Deal?
Before you buy, check the ownership setup—it’s a biggie. Most maisonettes are leasehold, meaning you own the place for a set term and pay ground rent to the freeholder. Service charges are rare since little is shared, though external upkeep might cost you. A freehold maisonette—either solo or shared with a neighbour—frees you from ground rent but ties you to maintenance duties. Upper units typically handle the roof and gutters, while lower ones cover the foundations. This split matters for mortgages too, so clarify it early to avoid surprises.
A Global Twist
Fun fact: maisonette morphs overseas. In Scotland, it might mean a duplex flat sharing a common entrance. In the US, it could be a swanky penthouse atop a high-rise. In France? A quaint cottage. Context is everything.
Why Maisonettes Shine
Maisonettes offer a unique middle ground—more space than a flat, less commitment than a house, and often a canvas for creative growth. Whether you’re eyeing a loft bedroom or a garden extension, they’re a smart pick for buyers wanting flexibility.
So, next time you spot maisonette on a listing, you’ll know exactly what you’re in for—and how far it could take you.