You have seen snippets of it before. Admired it in magazines. It is littered through the portfolios of leading photographers. It's a confection of girliness, a collection of the beautiful and the kitsch, covetable to the max, contagious in its quirkiness and a compilation of inspiring rooms. It's the home of stylist Marianne Cotterill. It's Mapesbury Road, London. Photography by Oliver Perrott.