Eight fire engines and around 60 firefighters were called to a fire at a takeaway restaurant with flats above on Garratt Lane in Wandsworth.
Half of the ground floor was damaged by the fire and a small part of the first floor was damaged. There were no reports of any injuries. Thirteen people self evacuated from neighbouring flats before the Brigade arrived.
The Brigade was called at 0400 and the fire was under control by 0652. Fire crews from Tooting and surrounding fire stations attended the scene.
The cause of the fire is under investigation.