Ask an Architect: How Can I Carve Out a New Room Without Extending?
When it comes to creating extra room, a mezzanine can be your best friend, cannily boosting space without the need for permission
Professional advice from: Pravin Muthiah of Coupdeville; Jamie Falla of Jamie Falla Architecture; Colm Doyle of DMVF Architects
Building a mezzanine for your bed is a fantastic way to increase the floor space of a compact flat. In this apartment, owned and designed by architect Pravin Muthiah, of Coupdeville in London, moving the bedroom to a higher level has allowed the flat’s living area to be made into a larger, open-plan space – the sort of spatial luxury that really makes a difference to a one-bedroom property.
‘With most small, modern spaces, normally both the living room and bedroom would be on the same floor,’ says Pravin, ‘but this is a good example of how a small space can feel much more generous by having a mezzanine. It effectively adds another room, as well as increasing resale value.’
Aside from the fact that a mezzanine is typically cheaper than a loft conversion, it’s also potentially an option in buildings that aren’t suitable for extending due to planning restrictions, since the structure is internal. There may be issues with adding some types of window, though probably not simple skylights – check the Government’s online Planning Portal for guidance.
Any construction will, however, need to meet Building Regulations and, depending on what you’re having done, it could be wise to consult a structural engineer.
Be inspired by more marvellous mezzanine designs
Having a loft space, however, is no prerequisite to building a new, high-up area in your home – there are many ways to look at constructing a mezzanine.
This creative approach to building a new room is the work of Colm Doyle of Irish architecture firm DMVF, and it has effectively turned an uninhabitable former fisherman’s cottage into a fully equipped one-bedroom house. Previously, the weeny 25 sq m property had no bathroom and just two rooms. But thanks to the addition of this birch ply box, it now has a bedroom (up the stairs), a dinky but fully-equipped kitchen, a utility room and a shower room, all below the sleeping platform. The rest of the space is now all living area.
Colm explains why he didn’t create a loft conversion in the cottage instead. ‘It’s a protected structure,’ he says. ‘It was built in the 16th century, so we couldn’t put any windows on the front, nor dormers, nor break the roof line.’ Permissible skylights illuminate the bed area.
The beamless structure, though meticulously designed, is far simpler than a loft conversion or even many mezzanines. ‘There’s no steelwork in there; we designed it with our cabinet-maker as a huge piece of furniture,’ Colm says.
This building is an old barn and the vast space inside such structures can feel imposing when they become homes. ‘You don’t want all double-height space,’ says Jamie Falla of Jamie Falla Architecture in the Channel Islands. ‘It’s almost too grand, and you’re trying to create cosiness within a large space.’
‘The use of glass is not the cheapest,’ says Jamie, ‘but it’s about creating a visual connection.’ It also allows you to ‘borrow’ more light from the lower space.
This bijou French library and micro lounge is another example of how a new floor area can be constructed to sit over existing rooms. Here, the designers reduced the height of the bathroom ceiling in order to create space above it for a mini mezzanine.
Part of the motivation, as well as to add living space, was to create architectural interest in a previously plain interior. The construction alone does that – especially with the monochrome paintwork to accentuate the lines – but additional details, such as the wall niches for display, and a new window, add yet more dimension. And no space has been wasted, as the barrier doubles as a bookcase.
The stairs are particularly clever: half of each tread has been designed to ‘float’, so as not to block the sightline.
Headspace, naturally, is a significant consideration. In Pravin’s flat, which is in a 1960s building, the ceilings are 4.8m high. ‘I think the minimum overall height you could start with would be 4.4m,’ says Pravin, ‘otherwise you won’t have standing space above.’
It’s important to work out how you’re going to illuminate both your elevated room and the newly enclosed space below. In Pravin’s flat in the previous image, floor-to-ceiling windows offer plenty of light for both levels. In this space, however, skylights have been added on both sides of the roof to flood the whole mezzanine with light, while a small window brightens the area underneath.
If your house or flat has the height, and you work from home, building into the roof could be the way to get your laptop off the kitchen table and into its own peaceful area. This could also be worth looking at if you don’t think there’s space for a bed or living area to squeeze in up there.
If height really is an issue, or a mezzanine would involve more building work than you currently want to get involved with, opening into the eaves of a property with a pitched roof is another idea. You can create a lot of new storage with very little disruption or cost, and you don’t even need to have a staircase built, as a (safe) ladder is often enough.
The shoes in this example double as an interesting display, but you could equally pack lots more stuff out of sight into a newly exposed cavity like this.
‘Originally, this was my house,’ explains Jamie Falla of this raised living area. ‘You want a big, open-plan, family-friendly space downstairs in these sorts of homes, but it’s also good to have somewhere for parents to retreat to in the evenings, to escape from children and other frenetic chaos and noise downstairs,’ he explains.
‘In these open-plan spaces, the aim is still always to engage with people, so while this TV room is separate, you’re not enclosing the space and cutting it off – it’s still part of the family room, but it creates a little privacy.’
The house was originally an old barn and Jamie was keen to work in harmony with the building. His team lowered the ground floor by 600mm rather than interfering with the roof externally to make space for the mezzanine level. They also replaced the roof’s original tie – the horizontal piece of timber that stretches between the sides of the roof to help hold it together – to allow this structure to be raised a little higher to provide more space. For strength, the new tie is steel rather than wood. ‘This was the biggest structural work we did,’ says Jamie, ‘and it was a flourish, rather than a necessity.’
A mezzanine floor doesn’t need to be open to the room below like a balcony if privacy is required. Here, an internal window lets in light from the space below. As already outlined, skylights are unlikely to prompt planning issues and can be used to add light if little can be borrowed from the room below. Ventilation is also a consideration.
This is the simple version of Colm Doyle’s ‘huge piece of furniture’ idea. Essentially, this combination of storage and sleep space is a bespoke bunk bed, but it shows how beautifully this sort of structure can be made, and how it can blend in with existing features to look architectural rather, in fact, than like a piece of furniture. This super-stylish design is for a child, but what’s to stop you commissioning a double or king-size version for yourself? The space beneath can be used as a wardrobe or desk space or as a little reading corner.
If you’re in a long-term rental, a version of this could also be the answer if you’re short of bedroom space. In theory, you can always take it with you when you leave.
‘You’ll probably need to get building control or a structural engineer involved in most mezzanine cases,’ continues Jamie, ‘but you can get away without doing a formal staircase. A parrot staircase [see image] where you step up with opposite feet, or a ladder will benefit floorspace.’
But if you don’t go for the ladder option, one advantage of having the excuse to build a staircase from scratch to reach your new level is that you can choose to build storage into it.
This storage staircase has drawers accessible from the space in the lower part of the room, as well as a built-in wardrobe. Each storage element cleverly fits within the run of the staircase.
Explore more ingenious ideas for boosting under-bed storage
‘In a lot of these spaces, people will make the new space for sleeping, and a lot of estate agents would also focus on an extra bedroom,’ says Jamie. This can mean it’s worth looking at boxrooms in a new light – could you double the size of yours?
‘Anything over 3.5m is a dimension where you can have a half level and then a mezzanine,’ says Jamie. He suggests, as he’s done in a recent project, building cupboards and putting a sleep space on top. Here, a similar idea uses the bed’s new platform for drawers. It’s an idea that can also work in many open-plan living areas.
‘Psychologically, it will feel bigger, so you get the benefit of more space but at lower cost,’ Jamie says. The space may not be big enough to fit in new levels that allow standing space above and below, but you can still create valuable space. ‘It’s also a lot less upheaval than a loft conversion.’
Have you added another living, sleeping or clever storage space to your home? We’d love to hear all about it or see your photos in the Comments below.