Marlborough Court, W8 (sold)

Purchased in February 2007 for £700,000, this 1,388 sq ft 5 bed top-floor flat in South Kensington was poorly laid out, in need of modernisation and had a very short lease.

A lease extension was negotiated along with a share of the freehold. Then, after negotiating the licence to alter, the layout was totally redesigned as it was cramped with too many small rooms and divided in half by a long corridor.

Sold as bright and airy, 3 bed 3 bath modern penthouse in June 2008,the flat achieved £1,500,000; a record price for the block.