Fifteen fire engines and 97 firefighters and officers were called to a fire at a shop with flats above on Welling High Street this afternoon.
Half of the shop on the ground floor was alight as well as a small part of a flat on the first floor.
The Brigade’s 999 control officers took 18 calls from the public about the fire.
One man was treated at the scene by London Ambulance Service.
The Brigade was called at 1600 and the incident was under control by 1938. Fire crews from Bexley, Plumstead, Erith, Sidcup and surrounding stations were at the scene.
The cause of the fire is under investigation.