Six fire engines and 35 firefighters and officers were called to a fire at a house in Willis Avenue in Sutton this morning.
The whole of the roof and part of the first floor of a detached house were damaged by fire. One person left the property before the arrival of the Brigade.
The Brigade was called at 0451 and the fire was under control at 0732. Fire crews from Wallington, Sutton, Mitcham and Croydon fire stations attended the scene.
The cause of the fire is under investigation.