Agents are asking £525 000 for the narrow home, which is spread over five levels and used to be a hat shop before being converted into living quarters.

Estate company Winkworths said the house, which they describe in promotional material as being "utterly amazing and almost certainly unique," was the narrowest they had ever offered for sale.

Other features of the property in the Shepherds Bush neighbourhood of west London - popular with media professionals and close to the British Broadcasting Corp's headquarters - include a narrow kitchen, dining area, reception room, three bedrooms, a shower room, dressing room, patio, small garden and a roof terrace which boasts panoramic views of London.

In another sign of London's expensive property market, a garage, in west London's trendy Notting Hill neighbourhood recently sold for nearly a quarter of a million pounds (about R2,9-million).

The double garage, which has space for just two cars and a small storage area, sparked a bidding war between neighbours who pushed the sale price to £240 000.

Estate agent Kit Allen said the price of the garage reflected the value of houses in the swanky neighbourhood.

"The houses in this area are very valuable indeed, we are talking about £5,5-million (about R64-million) to £6-million (about R69-million) for some of them," Allen said.

Sapa-AP