Ten fire engines and around 70 firefighters were called to a fire on a balcony at a block of flats in Darfield Way in Notting Hill.
A balcony on the 13th floor was destroyed by the fire and part of the flat was damaged. Crews spoke to residents in the building to reassure them.
Fire investigators initial findings indicate that the fire was accidental and was caused by sunlight refracting through a glass item on the balcony, however the unsafe disposal of cigarettes cannot be ruled out.
Group Manager Simon Tuhill, who was at the scene, said: “Crews worked hard and did a really good job to bring the fire under control quickly. Firefighters contained the fire to the flat of origin and thankfully there were no reports of any injuries.”
The Brigade's 999 control officers took 27 calls to the incident.
The Brigade was called at 1139 and the fire was under control by 1255. Fire crews from North Kensington, Kensington, Fulham, Park Royal, Chelsea, West Hampstead, Soho, Hammersmith and Chiswick fire stations attended the scene.