Eight fire engines and around 60 firefighters tackled a fire at a nightclub under refurbishment on Camden High Street.
Part of the roof was damaged by fire. The Brigade Control took 22 999 calls to the visible blaze.
Station Commander Jon Lewis, who was at the scene said: "Firefighters quick action and hard work in the early stages meant the fire was contained to the roof and saved the rest of the building."
The Brigade was called at 2056 and the fire was under control by 0237. Fire crews from Euston, Kentish Town, Islington, Soho, Holloway and surrounding fire stations were at the scene.
An investigation into the cause of the fire was carried out by the Brigade, representatives of the building’s insurers and the Health and Safety Executive. The cause of the fire is believed to be due to hot works being carried out.