Four fire engines and around 25 firefighters tackled a house fire on Maiden Lane in Crayford.
Half of the first floor of the two-storey terraced house was damaged by fire. One man suffering burns to his hand and smoke inhalation left the building before the arrival of the Brigade and was taken to hospital by London Ambulance Service.
The Brigade was called at 2132 and the fire was under control by 2258. Crews from Bexley and Erith fire stations and from Kent Fire and Rescue Service attended the scene.
The cause of the fire is under investigation.