Four fire engines and 21 firefighters and officers were called to a fire at a house in Tetcott Road, Chelsea.
A small part of the basement of the two-storey terraced property was damaged.
There were no reports of any injuries.
The Brigade was called at 1517 and the fire was under control at 1653. Fire crews from Chelsea, Fulham, Kensington and Battersea fire stations attended the scene.
The cause of the fire is under investigation.