Four fire engines and around 25 firefighters responded to a fire on Ladbroke Grove, North Kensington.
The incident involved a garage at the rear of a property.
The Brigade was first called about the fire at 0811, with crews from North Kensington, Kensington and Wembley fire stations sent to the scene. Firefighters had the incident under control by 0950.
The cause of the fire is not known.