Four fire engines and around 25 firefighters were called to a fire on Fortunegate Road in Brent involving four neighbouring terraced houses.
Part of the guttering and the external fascia of two of the houses were damaged by fire. A detached shed in the garden of one of those houses was destroyed by the blaze.
Part of a small area of wooden fencing at a third house was also damaged by the fire. Half of a detached garden shed and a small part of wooden fencing at the fourth house was damaged by the blaze. There were no reports of any injuries.
The Brigade's 999 Control Officers took 23 calls to the blaze.
The Brigade was called at 1314 and the fire was under control by 1426. Fire crews from Park Royal, Willesden, North Kensington and Wembley fire stations attended the scene.
The cause of the fire is under investigation.