Four fire engines and around 25 firefighters responded to reports of a fire at a bungalow on Chelsfield Lane in Orpington on Saturday evening.
Part of the bungalow was damaged by the fire. One man was led to safety by a member of the public.
The Brigade was called at 1110 and the fire was under control by 1147. Firefighters from Orpington, Sidcup and Eltham fire stations attended the scene.
The cause of the fire is under investigation.