Six fire engines and around 40 firefighters were called to a fire at a detached house on St Augustin’s Avenue in South Croydon.
The second floor roof conversion was completely destroyed by the fire, as well as part of the first and ground floors of the property, which had been converted into flats. One man left the building before the Brigade arrived and was assessed on scene by London Ambulance Service crews.
One gas cylinder was located on the first floor and was cooled to an ambient temperature - as some cylinders can explode when exposed to heat.
The Brigade was called at 1203 and the fire was under control by 1537. Crews from Croydon, Wallington, Woodside, Addington, Norbury and Beckenham fire stations attended the scene.
The cause of the fire is under investigation by the Brigade and the Metropolitan Police Service.