A luxury mansion in north-west London has been sold for £50m, estate agents have revealed.
The new owner plans to spend £30m 'improving' the property
Toprak Mansion in Bishops Avenue, Hampstead, boasts seven bedrooms, seven kitchens, an 80ft salon, a swimming pool and a two acre garden.
The new owner, who does not want to be identified, is planning to spend £30m "improving" the home, and installing a beauty salon, spa, and 35-seat cinema.
The property was originally built by Turkish businessman Halis Toprak.
However, it is thought he only lived in it for two days.
Other features of the mansion include a Turkish bath for 20 people, a glass lift, and a swimming pool with a glass bridge, and following the improvements will also include a squash court.
Trevor Abrahmsohn, of Glentree Estates, which sold the property, said: "It just shows you that the market is as strong as ever at the top end."
The owner, believed to be a woman from Kazakhstan, has changed the property's name to Royal Mansion.
Previously, the highest price for a new-build home was £35m, which was bought in the same area last week by an Israeli billionaire.
It was also sold by Glentree Estates.
The most expensive house purchase in London is reported to be a 12-bedroom mansion in Kensington Palace Gardens, bought by Indian steel tycoon Lakshmi Mittal in 2004.
The property, bought for a reported £128m, was also said to be the most expensive private residence ever purchased in the world.