Two fire engines and 10 firefighters and officers were called to a fire at a flat in Brentfield Gardens, Cricklewood, last night.
Half of a first floor flat was damaged by fire. Firefighters rescued a man via a ladder. He was suffering smoke inhalation and was treated by London Ambulance Service crews.
The Brigade was called at 2113 and the fire was under control by 2153. Fire crews from Hendon and West Hampstead fire stations attended the scene.
The cause of the fire is under investigation.