Six fire engines and 35 firefighters and officers were called to a fire at an office block in Soho Street this morning.
Part of the fourth floor and a plant room at roof level were damaged by fire.
The Brigade was called at 0527 and the fire was under control at 0802. Fire crews from Soho, Euston, Lambeth and Islington fire stations attended the scene.
The cause of the fire is currently unknown.