The living room is the room in which most people spend the most time — and the room that is planned least often. Usually it comes about by accretion: a sofa moves in, a television is added, at some point a shelf that was really meant to go somewhere else.
The result is often a room in which everything is there and yet something is not right. You sit there and can’t quite tell why it doesn’t feel right.
We see these rooms regularly. And we see five mistakes again and again.
Mistake 1: Everything is against the wall
The classic. Sofa against one wall, sideboard against the other, armchair in the corner — and in the middle an empty patch of carpet where nothing happens.
The thinking behind it is understandable: it makes the room look bigger. In fact, the opposite happens. A room whose centre is empty breaks up into edge zones. No place emerges where you actually are — only an outline.
What helps instead: Pull the sofa 20 to 40 centimetres away from the wall. It sounds like nothing, but it changes the perception considerably — the room gains depth instead of just area. In larger rooms you can place the seating group completely freely and use the back of the sofa as a spatial edge.
And the most important point: Seating should face each other. A living room is a place for conversation. If all the furniture points in the same direction, it’s a cinema.
Mistake 2: The rug is too small
Of all the mistakes in measurement, this is the most common — and the one with the greatest effect once you fix it.
A rug that is too small floats in front of the sofa like an island and makes the whole seating group look disconnected. It is meant to tie the furniture together, not lie decoratively in between.
The rule: At least the front feet of all seating should stand on the rug. In generous rooms, all the furniture feet stand on it.
Specific sizes:
| Room situation | Rug size |
|---|---|
| Seating group for up to 3 people | 200 × 300 cm |
| Larger seating group | 250 × 350 cm |
| Sofa with armchair in an L-shape | min. 300 × 400 cm |
Almost all the rugs we come across in homes are one size too small. 160 × 230 cm is a mat, not a living-room rug.
Mistake 3: One ceiling light for everything
A single light in the middle of the room produces exactly one lighting mood: work light. It illuminates evenly, without shadows and without any atmosphere — which is why nobody switches it on voluntarily in the evening.
Good light works on three levels:
Ambient light. The general brightness. It doesn’t have to come from the ceiling — indirect light via a cove, an uplighter or several wall lights feels more pleasant than a central source.
Task light. Where something happens. A reading lamp by the armchair, light above the dining table, lighting in the shelves.
Mood light. The small points of light that make a room look lived-in in the evening. A table lamp on the sideboard, a light in the niche, a floor light behind the plant.
Rule of thumb: Five to seven light sources in an average living room, all individually switchable or grouped into two or three scenes.
And on colour temperature: warm white, 2,700 kelvin. Anything above that looks cool and office-like in living spaces. Colour rendering should be at least Ra 90 — otherwise wood, textiles and skin tones look dull.
Mistake 4: The proportions are wrong
Furniture is chosen in the furniture store, in a hall with five-metre ceilings. Everything looks smaller there than it is at home.
A few measurements worth knowing:
- Sofa and coffee table: 40 to 45 cm apart. Less feels cramped, more forces you to lean forward.
- Picture height: The centre of the picture at around 145 to 150 cm above the floor — eye level when standing. Above the sofa it may hang lower, then 20 to 30 cm above the backrest.
- Pendant light above the dining table: Lower edge 60 to 70 cm above the table top.
- Distance from sofa to television: About 1.5 times the screen diagonal. For 55 inches (140 cm), that’s around 2.10 metres.
- Walkway width: At least 80 cm, better 90 cm. If you have to squeeze sideways past the armchair, the furnishing is wrong.
The second proportion mistake is furniture height. If everything ends at the same height — sideboard, sofa back, shelf — the room looks flat. It needs differences in height: something tall next to something low, a plant, a tall picture, a shelf that goes up to the ceiling.
Mistake 5: The open-plan living area is one big surface instead of several zones
Open floor plans are popular, and they work — but not by themselves. If cooking, dining and living are in one room, that room needs structure, otherwise it becomes a hall.
Zoning works without walls:
Through the floor. A rug defines the living area more clearly than a half-height wall ever could.
Through the ceiling. A suspended panel, cove lighting or a light hanging above an area marks it out.
Through furniture. The back of the sofa is a spatial edge. A low sideboard, an open shelf, a bench — all of them separate without closing off.
Through colour. A coloured section of wall behind the seating group pulls it together.
What you shouldn’t forget: Acoustics. Open rooms with hard floors and little fabric echo. Curtains, rugs, upholstered furniture and bookshelves are not just decoration — they make the room quieter and therefore more pleasant.
And the colour?
Just this much on colour choice, because it is a topic of its own: the most common uncertainty is the fear of colour, and it leads to rooms in which everything is white and nothing holds together.
A simple way in is the 60-30-10 rule: 60 percent of a calm base colour (walls, large surfaces), 30 percent of a second colour (upholstery, curtains, rug), 10 percent accent (cushions, objects, one piece of furniture).
And take the orientation into account. A north-facing room gets cool, bluish light — cold shades quickly feel uncomfortable there, warm tones balance it out. A south-facing room can easily take cooler colours.
Most importantly: always look at samples in the room, in daylight and in the evening under artificial light. A colour in the fan deck and the same colour on two square metres of wall are two different colours.
Frequently asked questions
Where do I start if I want to redo the whole living room?
Not with the sofa. Start with the floor plan: where does what happen, where do you walk through, where do you sit, where does the light come in. Only once the zones are set do you start choosing.
What if the room is very narrow?
Then you work with the long walls instead of against them: furniture along one long side, circulation along the other. Elements placed crosswise — a rug across, a picture across — break up the corridor effect.
Is an interior architect worth it for a single room?
Sometimes. If you are stuck or facing a larger investment, a consultation of two to three hours is often enough — and considerably cheaper than a sofa that doesn’t fit after all.
Do I have to do everything at once?
No, and we often advise against it. It makes more sense to have a concept that defines the target state and an implementation in stages. Then everything fits together in the end, even if it came about over two years.