Small Bathroom Design Ideas for London Homes

Walk into a typical Victorian or Edwardian terrace in Wimbledon, Tooting or Wandsworth and the bathroom is often the smallest room in the house. It might be a narrow strip at the back of the landing, a box room conversion or a loft en suite with a sloping ceiling. A small bathroom does not have to feel cramped. With careful planning, the right fittings and a few clever finishes, even a compact room can feel bright, open and easy to keep clean. This guide walks you through the decisions that make the biggest difference, in the order you should make them.

1. Measure everything before you choose anything

Good small bathroom design starts with an accurate plan, not a product brochure. Measure the length, width and ceiling height of the room, then mark the position of the door, the window, the radiator and, most importantly, the soil pipe. The soil pipe usually decides where the toilet can go, and moving it is the single most expensive change you can make.

As a rule of thumb, allow around 700mm of clear space in front of a toilet and a basin, and make sure the door can open fully without hitting anything. Note which way the door swings. Simply rehanging it to open outwards, or swapping it for a pocket door, can free up a surprising amount of floor.

2. Pick a layout that suits the shape of the room

Most small bathrooms fall into one of three shapes, and each has a layout that tends to work best.

• Long and narrow: line the toilet, basin and shower or bath along one wall, with the bath or shower at the far end. This leaves a clear walkway and makes the room feel longer rather than tighter.
• Square: put the shower in a corner with a quadrant or offset quadrant enclosure, which takes up less floor than a square tray of the same width.
• Loft or eaves rooms: place the bath or the toilet under the lowest part of the slope, where you sit or lie down, and keep the shower and basin where there is full standing headroom.

3. Lift fittings off the floor

Wall hung toilets and basins are one of the most effective tricks in a small bathroom. When you can see the floor running underneath, the room reads as larger. They are also much easier to clean around, with no awkward pedestal or toilet base collecting dust and grime.

A wall hung toilet sits on a concealed frame with the cistern hidden behind a false wall. That boxed in section often becomes a useful shelf for toiletries, giving you storage without adding a single cabinet.

4. Choose compact products designed for small spaces

Manufacturers make plenty of fittings specifically for tight rooms, and choosing them can be the difference between a layout that works and one that does not.

• Short projection toilets stick out less from the wall, often saving 100mm or more.
• Slimline vanity units and cloakroom basins give you a proper basin with storage in a shallow depth.
• Shower baths are wider at the showering end, so you keep a bath for children or a relaxing soak while still getting a comfortable shower.
• Bifold or sliding shower doors do not need clear space to swing open.

5. Think carefully about bath or shower

Swapping a bath for a generous walk in shower is a popular way to make a small bathroom feel more spacious. A single fixed glass panel keeps sightlines open and leaves fewer seals and runners to clean. If your home has only one bathroom, though, many estate agents advise keeping a bath somewhere in the property, as families with young children often look for one. A shower bath is a good compromise if you cannot decide.

6. Build storage into the walls

Clutter makes any small room feel smaller. Plan storage at the design stage so it does not end up perched on every surface. Recessed niches in the shower wall keep bottles off the floor. A mirrored cabinet above the basin gives you storage and a mirror in one. Tall, narrow wall cabinets use vertical space that would otherwise be wasted. Aim for closed storage where you can, because a calm, clear room always looks bigger.

7. Use tiles, colour and mirrors to stretch the space

Your finishes have a big effect on how large the room feels.

• Large format tiles mean fewer grout lines, which looks cleaner and is easier to maintain.
• Using the same tile on the floor and walls blurs the edges of the room so the eye does not stop at every corner.
• Light, warm colours bounce daylight around, while a single feature wall in a bolder tile adds character without closing the room in.
• A large mirror, ideally running the full width of the vanity, doubles the sense of depth.

8. Get the lighting right

A single ceiling light casts shadows and makes a small room feel gloomy. Combine bright recessed downlights with softer lighting, such as an illuminated mirror or LED strips under a floating vanity. Bathrooms are divided into zones based on how close a fitting is to water, and lights near the bath or shower must carry the right IP rating for their zone. Electrical work in a bathroom should always be carried out by a qualified electrician, and some of it must be notified to building control under Part P of the Building Regulations.

9. Do not forget ventilation

Small bathrooms steam up quickly, and trapped moisture leads to condensation, peeling paint and black mould. Building Regulations guidance recommends an extractor fan that removes at least 15 litres of air per second in a bathroom. Choose a quiet fan with a humidistat or overrun timer so it keeps running after you leave the room. For more on this, read our guide to condensation, damp and mould.

10. Check the plumbing behind the design

A beautiful design is only as good as the plumbing that supports it. Many older London homes still run on gravity fed systems with low water pressure, which can make a rainfall shower disappointing. Before you fall for a particular shower, check what your system can deliver and whether you need a pump or a different type of valve. Waste pipes also need enough fall to drain properly, which affects where the basin and shower can sit. Your designer should check all of this before anything is ordered.

Get a free bathroom design from Precise Supplies

Planning a small bathroom is a puzzle, and it is much easier with an expert on your side. When you order your bathroom from Precise Supplies, our design service is completely free. Our Wimbledon team will help you plan the layout, choose compact fittings that suit your space, and check the water pressure, waste runs and pipework so everything works as well as it looks. There are no design fees and no hidden charges.

We stock bathroom suites, shower enclosures, brassware, vanity units, tiles and extractor fans from trusted brands, all available from our trade counter at Unit 17, Windsor Park Industrial Estate, Wimbledon, London SW19 2TJ. We are open Monday to Friday from 7am to 5pm and Saturday from 8am to 1pm. Bring your measurements, or call us on 0208 143 4192 to book your free bathroom design today.