Snapchat’s parent group Snap Inc has agreed to treble the footprint of its London office after agreeing a deal for new premises in Soho.

The Californian firm signed a 10-year lease at 77 Shaftesbury Avenue, taking 20,000 sq ft of the property.

Its decision follows last month’s announcement that the UK capital would act as a base for all international operations.

A new British firm, called Snap Group Ltd, was established following the Snap Inc. rebrand of its parent company in the US.

Claire Valoti, Snap’s UK general manager, said at the time: “The UK is where our advertising clients are, where more than 10m daily Snapchatters are, and where we’ve already begun to hire talent.”

The new building is owned by Dolford Property Holdings, and will complement its presence at nearby 7-11 Lexington Street where it currently leases 13,000 sq ft.

Snap Inc is preparing for a £21bn stock market float and already has 75 staff members in the UK, growing from just 10 in less than a year.