Four fire engines and around 25 firefighters were called to a fire on Crantock Road in Catford.
Two garden sheds were destroyed by fire. The fencing between two properties was also destroyed by the blaze and part of another garden shed at an adjacent property was damaged by fire. There were no reports of any injuries.
The Brigade's 999 Control Officers took 18 calls to the blaze.
The Brigade was called at 1614 and the fire was under control by 1716. Fire crews from Forest Hill, Lee Green and Bromley fire stations attended the scene.
The cause of the fire is under investigation.