Four fire engines and 21 firefighters and officers dealt with a garage and house blaze on The Retreat, Harrow in the early hours of this morning.
The whole of the garage was gutted by fire and part of the first floor was also damaged.
Eight people left the property before the Brigade arrived.
The Brigade was called at 0317 and the fire was under control by 0447. Fire crews from Harrow, Northolt and Wembley fire stations were at the scene. The cause of the fire is under investigation.