King & Wood Mallesons (KWM) has named litigation partner Darren Roiser as its new London office managing partner.

The appointment comes as the firm prepares to move into new offices on the 11th floor of 20 Fenchurch Street – better known as the 'Walkie-Talkie' building – a move the firm said is designed to accommodate growth, primarily in its corporate, banking and finance, and disputes practices.