The Decorators’ Favourite Trick to Make a Small Living Room Feel Bigger

Sofa pressed up against the wall. Television crammed into a corner. A small rug marooned in the centre like a tiny island. The room was not particularly small, yet it seemed cramped, cluttered and almost short of air.

The issue was not the room’s dimensions. It was how the space registered the moment you entered it.

When I returned a few weeks later, the walls, sofa and windows were all unchanged. Yet the room appeared nearly twice its former size. One straightforward decorator’s technique had transformed it - and you could reproduce it in an afternoon.

The illusion decorators discreetly use

Decorators’ preferred way to “lengthen” a living room is neither a miraculous paint shade nor ruthless minimalist decluttering. It is more subtle: lifting the visual horizon. In other words, your eye is encouraged to move upwards, outwards and further into the room as soon as you step inside.

When your gaze lands low - on the back of a slouchy sofa, a low television unit or a small rug - the room appears squat and stunted. When it continues upwards, towards full-length curtains, elevated artwork, tall lamps and a generously sized rug, the same room immediately seems more impressive. The floor area is identical, but the impression is entirely different.

Nothing on the floor plan has altered. Yet your physical response does. You stand a little straighter, breathe more freely and stop asking, “Where could we possibly put people?” Instead, you begin thinking about whom to invite.

Designers understand this intuitively. They compose a room as they would a skyline: low, middle and high. By layering different heights, they make walls appear taller, ceilings feel loftier and floors seem to extend further. It is a psychological device rather than an architectural one.

Last year, I visited a New York studio whose living space measured barely 3.0 by 3.4 metres. The bed sat at one end, the kitchenette at the other, and the window looked onto a brick wall. On paper, it sounded undeniably cramped. In reality, it had the polished feel of a hotel suite.

Its owner, a stylist, had positioned curtain poles almost at ceiling height despite the short window. The drapes dropped in long, substantial columns. Artwork was arranged in vertical stacks rather than dotted around. A floor lamp rose like a sculptural feature. The sofa stood on narrow, exposed legs, allowing light to travel underneath it.

The limited size had not vanished, but attention had moved elsewhere. Rather than measuring the room in centimetres, your eye followed its forms and lines. You noticed the ceiling height rather than the narrow floor, and the warm glow of the lamp instead of the limited number of square metres. That is the illusion at work.

There is sound reasoning behind this decorating habit. Our brains interpret rooms remarkably quickly through visual shortcuts. Low, horizontal lines suggest “broad but flat”; vertical lines suggest “taller, airier, lighter”. A vertical focus effectively borrows perceived height from the walls.

Our eyes also search for anchors. A tiny rug makes the entire room seem tiny. A low curtain makes the window appear undersized. A short bookcase brings the ceiling visually closer. Turn those details around and the perception changes too. A larger rug in the right position makes the room feel bigger. Curtains hung high imply taller windows. A taller bookcase creates the atmosphere of a loft rather than a snug.

The technique, then, is not dependent on a single item. It is a sequence of signals all delivering one message: this room extends further than it first appears. That is what decorators are actually creating.

The one change that transforms a small living room

If you adopt just one professional technique, choose this one: hang curtains high and wide. Set the pole close to the ceiling and extend it roughly 10–15 cm beyond both sides of the window. You are doing more than framing the glass; you are redefining the proportions of the whole wall.

The fabric forms a vertical column that makes the wall seem taller. Its added width persuades the brain that the window - and consequently the wall - is larger. With the curtains open, most of the fabric gathers on the wall rather than covering the glass, leaving the complete window to feel brighter and more expansive.

That, in essence, is the decorator’s preferred illusion. It works in living rooms, bedrooms and even very small home offices tucked into a corner. Wherever there is a window, there is an opportunity to make the entire room appear larger.

You can then build on the result. Include one tall lamp that reaches at least eye level when you are standing. Position artwork with its centre slightly higher than you might instinctively choose. Select a bookcase or shelving unit that nearly reaches the ceiling instead of ending halfway up the wall. Each vertical feature provides another subtle prompt that says “spacious”.

This is where its emotional effect becomes apparent. On a difficult day, a confined room can feel as though it is criticising you: too much stuff, too little space, too little room for you. Raise the sightlines and the room no longer seems to bear down on you. It begins to feel supportive instead.

People repeatedly make certain choices simply because nobody has suggested an alternative. Curtains that stop just beneath the windowsill. Rugs placed far from the furniture. Shelving that sits awkwardly midway up the wall. None of these choices is inherently “wrong”, but each can quietly make the room feel smaller.

Let’s be honest: nobody really does this every day. No one gets up thinking, “Today I shall optimize my visual horizon.” You are simply trying to accommodate a sofa and coffee table without catching your toes. This is why decorators value the technique so highly: it is a modest, low-effort adjustment with a substantial effect once it is in place.

“When I raise the curtains and oversize the rug, my clients always say the same thing,” London interior designer Amara Field told me. “They don’t say, ‘Oh, smart spatial hack.’ They say, ‘It feels calmer. I can breathe.’ That’s the reaction I’m chasing.”

For a practical approach, here is the short checklist designers return to when making a small living room feel noticeably larger:

• Position curtain poles 10–15 cm below the ceiling and at least 10–15 cm beyond the window on each side.
• Select a rug large enough for at least the front legs of your sofa and chairs to rest on it.
• Introduce at least one tall feature - a lamp, plant or bookcase - to lead the eye upwards.
• Arrange artwork vertically rather than scattering small frames across the walls.
• Choose furniture with visible legs so that light can pass beneath each piece.

A small room that finally feels like your room

Once you recognise this technique, it becomes visible everywhere: in hotel lobbies that seem enormous, compact Airbnb stays photographed like lofts, and Instagram images where it is difficult to pinpoint why a room appears so generous. The same understated choreography of height, scale and sightlines is at play.

There is no requirement to reproduce it perfectly. Perhaps your landlord’s blinds cannot be replaced, but you can still introduce a long fabric side panel to add height. Perhaps a huge rug is beyond your budget, but you can opt for the largest bound carpet offcut you can afford. The illusion is not an all-or-nothing proposition; every modest alteration contributes.

More personally, altering the atmosphere of a room changes the way your evenings feel within it. You sit in a space that no longer constantly points out its limitations. You may invite over a friend you have been delaying asking. You may read on the sofa without looking towards the television corner and wondering where on earth one more person could sit.

We have all entered somebody else’s home and thought, “Wait, this is the same square footage as mine?” The walls, windows and floor may be identical on paper. What differs is the story the room presents to your brain. Height, light and generous proportions make a space seem as though it has more to offer.

That is why decorators’ favourite trick matters beyond appearance. It is about taking a small part of the world and allowing it to open up for you rather than work against you. A higher curtain pole, a larger rug and a taller lamp are small acts of defiance against the belief that you need a bigger home before you can feel you have enough room.