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To get a super-neat, precise line on their striking green colour-block walls they ‘used a laser light to draw the line first, and then Ian did the painting,’ says Caroline

OUR MUST HAVES Belmont industrialstyle Black metal bed frame, £149.99, Crazy

Price Beds. Yopo Black & White Cityscape textured wallpaper, £13 per roll, B&Q. Matt emulsion in Brooklands, £44 per 2.5L, Vintro