Four fire engines and around 20 firefighters and officers were called to a fire at a house in Outram Place in Islington on Sunday.
Part of the ground, first and second floors of the property were damaged by fire. Two people left the property before the arrival of the Brigade.
The Brigade was called at 0713 and the fire was under control at 0745. Fire crews from Euston, Kentish Town and Islington fire stations attended the scene.
The cause of the fire is under investigation.