Four fire engines and around 25 firefighters responded to a house fire on Links Road, Tooting.
The fire was located in a terraced house of two floors. A conservatory at the rear of the building was completely destroyed by fire. Two people left the building before crews arrived, and there are no reports of any injuries.
The Brigade's Control Room received the first of four calls reporting the fire at 2348, and the fire was under control by 0054. Firefighters from Tooting, Mitcham and Wimbledon fire stations attended the scene.
The cause of the fire is under investigation.