Four fire engines and around 25 firefighters tackled a fire at a restaurant on Upper Tooting Road in Tooting.
Part of a kitchen on the ground floor was damaged. There have been no reports of any injuries.
The Brigade’s 999 Control Officers received seven calls about the fire.
The Brigade was called at 1230 and the fire was brought under control by 1338. Firefighters from Tooting, Wimbledon and Norbury fire stations are at the scene.
The cause of the fire is unknown at this time.