Six fire engines and around 40 firefighters were called to a fire on the roof of a hotel on Fitzroy Street in Fitzrovia.
Half of the roof was damaged by the fire. There were no reports of any injuries.
The Brigade was called at 1940 and the fire was under control by 2130. Fire crews from Euston, Soho, Kentish Town and Paddington fire stations were at the scene.
The fire has been recorded as accidental and the cause is believed to be the unsafe use of a disposable barbecue.
The Brigade’s tips on preventing grass fires are as follows: