Start With Light: Why Colour Sets the Tone

In a compact bathroom, colour does more to change how the room feels than almost any other decision you will make. Pale tiles — soft whites, warm greys, chalky off-whites and gentle stone tones — bounce light around instead of absorbing it, which makes walls feel further apart and ceilings feel higher. If you love darker shades, keep them to one feature wall or a band behind the basin rather than wrapping them around all four walls.

Think about which way your bathroom faces, too. North-facing rooms tend to receive cooler, flatter light, so very grey tiles can read as dull and slightly dingy. In those rooms, lean towards warmer neutrals or ask for samples with a cream base rather than a blue one. South-facing rooms are far more forgiving and will happily carry a cool mid-grey or a soft green.

One reliable trick is to reduce the number of visual breaks in the room. Carry the same tile from the floor up one wall, or use the same tile across floor and walls in different formats. Every change of surface gives the eye somewhere to stop, and short walls full of stopping points feel cramped. Fewer transitions, more space.

Choose a Format That Suits the Room, Not the Showroom

Large-format tiles mean fewer grout lines, and fewer grout lines mean fewer interruptions across a wall. A 600 x 300mm tile laid horizontally on a narrow wall, or a 600 x 600mm floor tile in a small room, can make a modest bathroom feel considerably more generous than it is.

That said, bigger is not automatically better. If your walls are broken up by boxing, pipework or a sloping ceiling, oversized tiles can leave you with an awkward sliver of cut tile in the most visible corner. In those spaces, a mid-format tile — around 300 x 300mm or 300 x 200mm — often gives a tidier finish.

• Small bathrooms with clean, uninterrupted walls: go large, and keep the layout simple.
• Rooms with lots of obstacles: choose a mid-format tile so cuts fall in less obvious places.
• Shower walls: a taller format such as 600 x 300mm laid vertically draws the eye upwards and adds height.
• Floors: avoid anything so large that the room looks like it has been tiled with offcuts, but equally avoid mosaics unless you want a busy, textured floor.

Matt or Polished? Texture and Practicality

Polished porcelain reflects light beautifully, which is why it appears in so many showroom displays. In a real bathroom, though, it shows every water splash, toothpaste fleck and limescale mark. If you want the shine without the upkeep, consider a semi-polished or lappato finish, which has a soft sheen rather than a mirror surface.

Matt finishes are the more forgiving choice. They hide water marks, feel warmer underfoot and grip better when wet, which matters if children or older family members use the room. For floors, look for a tile rated R10 or above for slip resistance; R11 is a sensible choice if the bathroom doubles as a wet room. Matt and textured tiles also photograph less starkly than gloss, which often makes a small space feel calmer rather than clinical.

Wood-look porcelain is worth a look if you want warmth without the maintenance. A plank format laid lengthways down the room can subtly stretch the space, and it feels far kinder underfoot on a cold morning.

Layout: How You Lay the Tiles Changes Everything

The same tile can look completely different depending on how it is set out, so decide this before you buy rather than on the day the adhesive is mixed.

• Vertical stacking or vertical brick bond: pulls the eye up, ideal for low ceilings and narrow shower walls.
• Horizontal running bond: widens a room that feels long and thin.
• Herringbone or chevron: striking, but the diagonal lines and extra cuts can overwhelm a genuinely small room. Use it on a floor or a single wall, not both.
• Tiling to the ceiling in the shower: removes the horizontal line where tiles stop and painted wall begins, which visually lifts the whole room.

Align your grout lines with the edges of the room and with any niche or window where you can. Neat, continuous lines read as order and space; misaligned ones draw attention to every awkward corner.

Grout, Trim and the Finishing Details

Grout is not an afterthought. Contrasting grout — dark grey on white tiles — turns the wall into a grid of lines and can look wonderful in a period property, but it will make a small room feel busier. Matching or near-matching grout makes the surface read almost as one piece, which is usually the better choice in a compact space.

Use epoxy or a good quality cementitious grout in shower areas, as it resists mould and staining far better. Where tiles meet the bath, tray or a change of wall, use a flexible silicone rather than grout to allow for movement. Finish exposed edges with a tile trim in a colour that disappears rather than shouts.

Practical Checks Before You Order

• Measure walls and floor separately, then add around 10% for cuts, breakages and spares. Keeping a few spare tiles in the loft is far easier than trying to match a discontinued batch later.
• Order everything in one go and check the shade, calibre and batch numbers on the boxes match. Tiles from different batches can vary noticeably.
• Check the weight. Large porcelain tiles are heavy, and some plasterboard walls will need a backer board or additional preparation before they can take them.
• Confirm the adhesive and grout are suitable for porcelain, for the tile size and for any underfloor heating you are planning.
• Live with your samples for a few days. Look at them in morning light, evening light and with the bathroom light on. A tile that looks perfect in the shop can turn cold or yellow once it is in your home.

Get these decisions right and a small bathroom stops feeling like a compromise. It becomes a calm, bright, practical room — one that is genuinely a pleasure to use every morning.