Most rooms that feel wrong are not badly decorated. They are decorated for a different room: the one in the showroom photo, lit by a south-facing studio window and empty of the things people actually own. The interior design tips below start from the other end. They begin with how a room is used and the light it really gets, then work forward to paint, layout and lamps. None of it needs a big budget. Most of it needs a tape measure, a few sample pots and a week of paying attention.
Start with how you use the room, not with a moodboard
Before you pick a single colour, write down what happens in the room on an ordinary Tuesday. Who is in there, at what time, doing what? A living room that hosts a family film every night, a laptop in the afternoon and a clothes horse on wet Mondays has three jobs, and each of those jobs needs something. The film needs dim, warm light and a clear view of the screen. The laptop needs a surface and a socket. The clothes horse needs somewhere to live when it is folded.
Then note what annoys you. The armchair nobody sits in because it faces a wall. The dark corner by the door. The coffee table everyone stubs a toe on. These irritations are your brief. A moodboard tells you what you like the look of; a week of notes tells you what the room is short of, and that is the thing that makes a room feel finished.
Working with British light: north, south, east and west-facing rooms
Britain gets soft, often grey daylight for much of the year, and the direction a window faces changes the colour of that light more than most people expect. A compass app on your phone will tell you which way your main window points. Here is what that usually means in practice.
| Window faces | What the light does | What tends to work | What tends to struggle |
|---|---|---|---|
| North | Cool, even and indirect all day, with no direct sun | Warm whites and colours with a red or yellow undertone; deeper shades that look cosy rather than gloomy | Cool greys and blue-based whites, which can turn flat and cold |
| South | Warm and bright for most of the day | Almost anything; cooler colours stop it feeling hot and glaring | Very warm yellows, which can look overpowering at midday |
| East | Bright, warmish morning light, then cooler and bluer in the afternoon | Colours chosen for when you use the room most: a breakfast room and a guest room are different jobs | Colours tested only in the morning |
| West | Cooler in the morning, then low, golden light in the evening | Shades that still look right in orange evening light, which flatters most warm and earthy tones | Colours tested only at lunchtime |
The point of the table is not that blue is banned from north-facing rooms. It is that the same tin of paint will look like two different colours in two different rooms of the same house, and planning for the light you actually have saves you from repainting.
How to choose paint colours that look right in your room
Choosing paint goes wrong at the shop, because a chip the size of a stamp under strip lighting tells you almost nothing. A better routine takes a few days but costs only a couple of sample pots.
- Narrow it to three colours at most. More than that and you will be comparing tiny differences you will never notice once the furniture is back.
- Paint two coats of each sample onto a large sheet of lining paper or card, roughly A3, leaving a white border so the old wall colour does not distort it.
- Move the sheets around: the darkest corner, beside the window, next to the sofa, near the floor and up by the ceiling.
- Look at them in the morning, at midday, at dusk and under your own lamps at night. The evening view matters most in a living room because that is when it gets used.
- Check the undertone by holding each sheet against a sheet of plain printer paper. Next to true white, a grey that looked neutral will often show itself as green, blue or pink.
Many paint makers print a light reflectance value, or LRV, for each colour. It runs from 0 for black to 100 for a perfect white, and it is a useful shortcut in a dim room: a colour with a higher LRV bounces more of the little light you have back into the space. It is not the only thing that matters, but if two shades look equally good on the card, the one with the higher LRV will usually make a north-facing room feel lighter.
Finally, buy enough paint from one batch to finish the job, or mix the tins together before you start. Even the same named colour can vary a little from one tin to the next, and a touch-up from a new tin months later is where that difference shows.
Colour drenching: what it is and when it works
Colour drenching means painting walls, ceiling, skirting boards, door frames and sometimes the radiators and doors in one colour, or in very close shades of it. Instead of a pale box with contrasting trim, the whole room becomes one continuous surface.
It works best in three situations. Small rooms, such as a downstairs loo, box room or narrow hall, where breaking the walls into white lines and coloured panels makes the space look busier and smaller. Rooms with awkward features, such as sloping ceilings, boxed-in pipes or too many doors, where one colour hides the joins. And rooms used mainly in the evening, where a deep, enveloping shade feels deliberate rather than dark.
It is harder to pull off in a large, bright, open-plan space, where a single strong colour across every surface can feel relentless. There, a softer version helps: use the same colour on walls and woodwork, and a slightly lighter shade of it on the ceiling. A practical tip: pick an eggshell or satin version of the wall colour for the woodwork. The colour matches, but the woodwork stays wipeable.
Feature walls: where they help and where they fight the room
A feature wall earns its place when it does a job. Painting or papering the wall behind the bed gives a bedroom a focal point without filling it with furniture. In a long, narrow room, a deeper colour on one of the short end walls can make that wall look closer and the room feel better proportioned. In an open-plan space, a feature wall can quietly mark where the dining area ends and the living area starts.
Feature walls fight the room when they are chosen at random. The classic mistake is the wall you happen to see first from the door, which is often the one with the window or the radiator on it. Another is a bold wall facing a bold sofa, so the two compete for attention. If you are unsure, pick the wall the room’s seating already looks at, and keep the strongest colour on the wall with the fewest interruptions.
How to make a room look bigger without knocking anything down
You cannot add floor area with paint, but you can change how much of the room the eye takes in, and that is what “bigger” feels like. These are the changes that make the most difference for the least money.
- Clear the floor near the walls. Furniture on slim legs, and storage that stops short of the floor, lets you see more floor, and more floor reads as more room.
- Hang curtains higher and wider than the window. A pole fixed well above the frame, with curtains that clear the glass when open, makes the window look larger and lets in every bit of daylight.
- Put a large mirror on a wall next to the window rather than directly opposite it. That way it reflects the view and the light without throwing glare back into your eyes.
- Keep colour changes to a minimum. Fewer contrasting edges, such as white skirting against dark walls, let the eye travel round the room without stopping.
- Choose one big rug rather than several small ones. Small rugs chop a floor into islands.
If you are thinking about taking out a wall, that is a different project. Removing a load-bearing wall needs a structural engineer, and the work has to meet the Building Regulations, so check before anyone picks up a sledgehammer. A wall shared with a neighbour brings in the Party Wall Act as well.
Scale and proportion: furniture, rugs and the measurement that makes a room feel wrong
When a room feels wrong but nothing is obviously ugly, scale is usually the reason. A sofa too large for the room, a rug too small for the seating, or a ceiling light hung so low that the room seems to crouch under it. These measurements are rules of thumb used by designers, not laws, but they are a good place to start.
- Rug: big enough that at least the front legs of the sofa and every chair sit on it. A rug that floats in the middle of the seating, touching nothing, makes the furniture look as if it is drifting apart.
- Coffee table: roughly two-thirds of the length of the sofa, with enough space between them to walk past without turning sideways.
- Walkways: keep the main route through the room clear and wide enough for two people to pass. If you are always squeezing past something, it is in the wrong place.
- Art: hang it so its centre is roughly at eye level for a standing adult, and above a sofa leave a hand’s width or so between the frame and the back of the sofa.
Before buying anything big, mark its footprint on the floor with masking tape and live with it for a couple of days. It is the cheapest way to find out that the corner sofa blocks the door.
Layering lighting: ceiling, task and lamp
A single ceiling light is the most common reason a well-decorated room still looks flat at night. It lights the floor and the tops of heads, and leaves the corners in shadow. Designers talk about three layers. General light fills the room; in many homes this is the ceiling fitting, ideally on a dimmer. Task light is aimed where you do something: a reading lamp by the armchair, under-cabinet strips in the kitchen, a desk lamp. Accent or mood light is the soft extra, such as a lamp in a dark corner, a picture light or a string of lights on a shelf.
Aim for light at different heights, with at least one lamp in each corner that you notice is dark. Check the colour temperature on the bulb box. It is shown in kelvin (K). Around 2700K gives the warm white most people want in a living room or bedroom. Cooler figures, around 4000K, suit a kitchen worktop or a desk where you need to see detail. Mixing the two in one room is what makes some spaces look slightly yellow in one corner and blue in another.
Making one room do two jobs (WFH corners, guest space)
Lots of homes now ask a room to be an office by day and a living room or spare bedroom by night. The trick is to give each job its own zone and make the switch quick.
For a work corner, set the desk side-on to the window. Facing the window gives you glare and a dark silhouette on video calls; with your back to it, the screen catches the reflection. Side-on gives you daylight across the desk without either problem. Give the work kit a home that closes, such as a cupboard, a lidded box or a curtain across an alcove, so the laptop disappears at the end of the day. A rug under the desk area marks it as a separate zone without building a wall.
For a room that has to sleep a guest, a good sofa bed or a daybed beats a full bed that takes over the floor for the 350 nights a year nobody stays. Leave one clear shelf and a few hooks so a visitor is not living out of a suitcase on the floor.
Common decorating mistakes and how to undo them
- Choosing paint under shop lighting. Undo it by testing large swatches at home, at different times of day, before you buy the big tins.
- Pushing every piece of furniture against the walls. Pull the sofa forward even a short way and group the seating so people can talk without shouting across a gap.
- Buying a rug that is too small. If you cannot replace it, layer it on top of a larger, cheaper plain rug.
- Relying on the ceiling light. Add two lamps at different heights before you change anything else.
- Sanding or scraping old textured ceilings. Textured coatings applied before 2000 can contain asbestos, so have them tested before you disturb them, and do not sand them yourself.
- Matching everything. A room where the cushions, curtains and rug are all the same colour looks flat. Keep the colours related, and vary the texture.
Checklist: plan a room makeover in a weekend
- Friday evening: list what happens in the room and what annoys you about it. Check which way the main window faces.
- Saturday morning: measure the room, the windows and the big furniture. Sketch it on squared paper.
- Saturday: clear the clutter, move the furniture into a trial layout and mark any new pieces on the floor with masking tape.
- Saturday afternoon: buy two or three sample pots and paint large swatches on card.
- Saturday evening: switch off the ceiling light and see what the lamps do. Note the dark corners.
- Sunday: look at the swatches in daylight and again after dark, and choose one.
- Sunday afternoon: write a shopping list in priority order: paint, then lighting, then rug, then everything else.
FAQ
What colour makes a small room look bigger?
Light colours with a high light reflectance value help most, but the trick is fewer contrasts rather than one magic shade. Painting walls and woodwork in the same pale colour, or colour drenching a small room in a mid-tone, removes the hard edges that make a space feel boxed in.
Is colour drenching just a trend?
The name is recent, but painting a whole room, woodwork included, in one colour is an old idea. It looks dated only when the colour is wrong for the light, so test it like any other paint choice.
Should the ceiling be white?
Not always. A brilliant white ceiling above strongly coloured walls can look like a lid. A ceiling a shade or two lighter than the walls, or the same colour in a colour-drenched room, often looks calmer.
How many lamps does a living room need?
There is no fixed number, but most living rooms look better with the ceiling light plus at least two or three lamps at different heights, placed so no corner you sit near is in shadow.
Do I need permission to knock through between two rooms?
If the wall is load-bearing, yes in practice: the work must meet the Building Regulations and you will need a structural engineer’s design. Check with your local authority’s building control team before starting, and if you are a leaseholder or tenant, check your lease or tenancy too.
