An apartment that is believed to be the most expensive one-bedroom property in the world is on sale in Tokyo with a price tag of a cool Y1.8 billion, The Telegraph reported.

The House Minami-Azabu is spread over more than 4,430 square feet of a condominium building in the Minami-Azabu district of west Tokyo and is being sold by Japan Sotheby's International Realty. The price reportedly means that 1 square foot of the property costs £3,320.33.

The owner of the penthouse apartment – whom Sotheby's would only identify as a successful and married businessman – spent 18 months completely refurbishing the property from a four-bedroom family home.

Stone and wood imported from Italy has been used for the walls, flooring and doors, a Japanese "ryotei"-style dining room is designed specifically for dinner parties where the chef can serve guests directly from the kitchen.

A separate "casual" dining room has a Parisian-style terrace overlooking the neighbouring park. The bedroom includes an expansive walk-in closet, while the bathroom incorporates a hot-tub and a 60-inch television.

The storage for shoes in the entrance has space to accommodate 200 pairs of shoes, but the focal point of the property is the courtyard with a surrounding lounge area where guests can "enjoy the charming seasonal garden".