Start With the Bones of the Room

Before you spend a penny, take five minutes to look at what you have already got. British living rooms tend to have a few natural advantages: a chimney breast to build a focal point around, alcoves either side begging for shelves, and in older terraces, a decent ceiling height that makes a room feel generous even when it is small. Work with these features rather than against them.

Move the sofa away from the wall if you can. Even pushing it out by 30cm and adding a slim console or a basket behind it softens the whole arrangement. Angle an armchair towards the fire or the window rather than squaring it off against the sofa — that slight turn instantly makes a room feel like somewhere you would actually sit and natter, rather than a waiting area.

Layer Your Textiles Like a Proper Yorkshire Winter

If you do one thing, do this. Texture is what separates a room that looks cosy from one that merely looks tidy, and textiles are the cheapest way to add it.

• Start with the floor. A large wool rug is transformative, but they are pricey. Instead, layer a smaller vintage rug or a flatweave over a cheap neutral carpet or jute base. Two smaller rugs overlapped often look more collected and characterful than one big one anyway.
• Throws, and plenty of them. A Welsh wool blanket in a check or stripe draped over the arm of a sofa does more for a room than most ornaments. Look for them in charity shops, car boot sales and auction house general sales — they are often under £20 and the colours are far nicer than anything new.
• Cushions in odd numbers. Three or five, in mixed sizes and fabrics. A 50cm linen square at the back, a 45cm velvet or needlecord in the middle, a small 30cm knitted one in front. Mixing weaves matters more than matching colours.
• Don't forget the windows. If you have bare blinds, adding a pair of curtains — even unlined ones on a simple pole — traps warmth and softens the light. Charity shops regularly have good quality curtains that people have grown tired of, and a pair can be taken up by a dry cleaner's tailor for very little.

Get the Lighting Right and Everything Else Follows

Overhead lighting is the enemy of cosy. If you have a single pendant on a bright white bulb, that one switch is doing more damage than any amount of mismatched furniture.

Aim for three or four separate pools of light at different heights instead. A floor lamp beside the armchair, a small table lamp on a side table, and a low lamp or candles on the mantelpiece. Choose warm white bulbs around 2700K — anything cooler will make even the loveliest room feel like a dentist's waiting room. Dimmers are inexpensive and easy to fit if you are confident with a screwdriver, though for anything more involved, get an electrician in.

Also, consider a lamp with a fabric shade rather than a bare bulb or a metal shade. Fabric diffuses light and casts it softly across the ceiling and walls. A simple drum shade in an oatmeal or cream linen is never the wrong answer.

Shop Vintage, Shop Local, Shop Slowly

The best budget rooms are built over months, not weekends. Charity shops in smarter towns, house clearance sales, and the smaller rooms at local auction houses are where the good stuff hides. Go regularly rather than once — the stock turns over constantly.

Things worth hunting for: brass candlesticks, which polish up beautifully and look far more expensive than they cost; old framed prints and maps, particularly anything with a bit of foxing on the paper; ceramic jugs and stoneware pots for holding dried stems; and wooden picture frames you can repaint or wax.

One word of caution: buy less than you think you need. A room with five lovely things reads far better than one groaning with twenty mediocre ones. If an object does not earn its place, put it back.

Warm the Walls and the Senses

If your walls are a cool grey or brilliant white, a single tin of paint is the highest-impact spend in the whole room. Warm neutrals — clay, oatmeal, soft sage, a muted terracotta — flatter both old furniture and low light. Paint the alcoves and the chimney breast the same colour as the walls rather than fighting them with a feature colour, and the room will feel bigger and calmer.

Finish with a few sensory touches: a bowl of dried orange slices and star anise near the fire, a stack of well-thumbed books on the floor beside the sofa, a tray for the remote controls and the tea cups. Cosiness is rarely about things. It is about the room feeling used, looked after, and ready for someone to sit down in.