A family home measuring little over 2.7 metres (9ft) wide has gone on the market for £1.3 million - four times the average value of a house in Britain.
The Sun reports that the property is located in east London’s trendy Hackney and is just two minutes from London Fields and Broadway Market.
The four-storey home reportedly boasts a south-facing garden and two bedrooms.
The listing says: “A truly unique house in one of the most exciting areas of London. A striking design connected over four floors by a bespoke steel and timber staircase.
“The house has a south-facing, tree-lined, private garden and off-street parking.
"The property is located two minutes walk from London Fields, close to Broadway Market and less than a mile from Dalston Junction and Hackney Downs overground.”
The property, being sold by the Dexters estate agency, reportedly has a bedroom on each of the top two levels, a compact kitchen and a separate living room on the ground floor with a bathroom in the basement.
Daniel Copley, of Zoopla, said: “This one-of-a-kind converted coach houses benefits from an enviable location right on the doorstep of Broadway Market, London Fields Lido and Dalston's bustling nightlife.
“The property itself has a bright and airy interior with the showstopper undoubtedly being the bespoke steel and timber staircase which connects the property's four floors.”
According to Rightmove research reported last year. there had been a 900 per cent increase in the number of streets in Hackney where the average value of a property was £1 million.