The swimming pool is a recent addition

Earls Terrace, a row of Grade II listed Georgian houses in exclusive Kensington, have been totally restored, and are attracting widespread interest.

Among the well-heeled looking to buy are reported to be Madonna.

The houses were originally built in 1811, the first was sold for just £630, but their value had risen by nearly 1000% by the time the developers, Northacre, bought the freehold in 1994 for £15m.

By then the 25 houses had been turned into 125 self-contained one bedroom flats.

The company eventually persuaded the flats' occupants to move out, and set about installing features the original owners would never have dreamed about.

Workmen are completing the final touches

"The purchasers can choose between houses that provide a games room or a swimming pool," said John Hunter from Northacre.

"The games room houses are ideal as home cinemas."

Parking was not a problem when the terrace was built, and neither is it now: "Where the coal cellars were in the early nineteenth century you now have a car park instead," he said.

Earls Terrace is being dubbed 'the new Millionnaire's Row' and John Hunter says it is easy to see why the development appeals to clients like Madonna.

No expense has been spared

The American singer is reported to have viewed one of the houses, and her agents are being kept in touch with developments.

"I think it is more than likely that there will be a number of people who decide to buy houses here because it offers them the opportunity to protect their privacy.

"It offers them the opportunity of actually living in a house here without having to to go out of the house at all, they can drive into the car park, they can walk into their house, they can use their swimming pool and it is all under cover," he said.

As well as the luxury houses, a buyer's £3m plus will also buy a piece of history.

Earls Terrace was owned by the Second Baron of Kensington who, according to legend, was an agent for Napoleon.