Four fire engines and around 25 firefighters tackled a house fire on Wells Drive in Kingsbury.
The ground floor of the two-storey semi-detached house was destroyed by fire. There are no reports of any injuries.
The Brigade was called at 1241 and the fire was under control by 1339. Crews from Willesden, Mill Hill, and Stanmore fire stations attended the scene.
The cause of the fire is under investigation.