Six fire engines and around 40 firefighters raced to a house on fire on Millet Road in Greenford yesterday (6 April).
An annexe of a two-storey end-of-terrace house was destroyed by fire. Part of a garage and a small part of the house was also damaged by fire, The Brigade confirmed.
An outbuilding from a neighbouring property was destroyed by fire. There have been no reports of injuries.
The Brigade was called at 05:29am and the fire was under control by 06:41am.
Crews from Southall, Northolt, Ealing, Hillingdon and Feltham fire stations attended the scene. The cause of the fire is under investigation.