This one bedroom flat, thought to be among the smallest in London, has been put up for sale for more than a 14 bedroom mansion. See SWNS story SWSMALL; The pint-sized pied-a-terre has just 336sq/ft of space, which is around the size of a large master bedroom. It was originally a studio flat, but a shield has been installed to create a separate bedroom for the property, in Victoria. And despite being so small it has been put on the market for a staggering £449,000 - two-and-a-half times the average price paid for a home in the UK. The flat is just £50,000 more than than a Devon mansion which has also just come onto the market.