Four fire engines and around 25 firefighters were called to a fire at a flat on Foxglove Close in Edmonton.
Half of a two-roomed flat on the ground floor was damaged by fire. There were no reports of any injuries.
The Brigade's 999 Control Officers took 13 calls to the fire.
The Brigade was called at 1818 and the fire was under control by 1907. Fire crews from Enfield and Edmonton fire stations attended the scene.
The cause of the fire is under investigation by the Brigade and the Metropolitan Police Service.