A terraced house was almost entirely consumed by fire.
Six fire engines and around 40 firefighters were called to the blaze in East Road in Edgware, on October 11.
The ground and first floor of the house was destroyed as was part of the roof and garden shed.
Three people left the property before the London Fire Brigade arrived. They were assessed at the scene by the London Ambulance Service.
The Brigade was called at 12.20pm and the fire was under control by around 2pm.
Fire crews from Stanmore, Mill Hill, Hendon, Willesden and West Hampstead fire stations attended scene.
The cause of the fire is under investigation.
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