Eight fire engines and around 60 firefighters have tackled a split level flat blaze on Chelsea Embankment.
Station Commander Sacha Clement said:
"Fire crews worked exceptional hard to get the fire under control quickly and stop it from spreading to surrounding properties. The damage was contained to the loft space and firefighters have carried out salvage work on the lower floors.
"A man left the flat before the Brigade arrived. He was suffering from smoke inhalation and he was treated at the scene by London Ambulance Service crews."
The Brigade was called at 1023 and the fire was under control by 1134. Fire crews from Chelsea, Battersea, Fulham, Lambeth, Kensington and Soho fire stations attended the scene. The cause of the fire is believed to be a fault in underfloor heating.