London

A cramped Kensington studio with a bunk bed over a sofa and a kitchenette just inches away is renting for £1,400 a month, with all bills and a £30 water charge extra.

A tiny London studio flat in Bermondsey costs £1,390 a month and requires tenants earning £51,000 a year, with strict rules banning pets, smoking, parties and even a real bed.

A £1,000-a-month studio in Harlesden, north London, offers a sofa bed instead of a real bed. Recently refurbished, it includes shared kitchen access and a large garden.