Four fire engines and around 25 firefighters attended a fire at a property on Sumatra Road in West Hampstead.
The fire occurred at a mid-terraced house converted into flats. A first floor flat was partially damaged along with decking on a first floor roof. Six people left the property before firefighters arrived and there were no reports of any injuries.
The Brigade received the first of 27 calls at 2123 and Control Officers mobilised crews from West Hampstead, Willesden and Paddington fire stations to the scene. The fire was extinguished by 2252.
The cause of the fire has been recorded as accidental