Four fire engines and around 25 firefighters attended a house fire on Queens Way in Hendon.
Most of the ground floor and part of the first-floor and loft of the house was damaged by fire. There were no reports of any injuries.
The Brigade received the first of seven calls at 0439 and Control Officers mobilised crews from Finchley, West Hampstead and Willesden fire stations to the scene. The fire was extinguished by 0640.
The cause of the fire is under investigation by the Brigade and Metropolitan Police.