Eleven firefighters brought the blaze under control. (Image: Archant)
Four fire engines and around 20 firefighters and officers were called to a fire at an office block which is undergoing refurbishment on West Heath Road in Hampstead.
Part of the basement of the West Hampstead building was damaged by fire.
The Fire Brigade was called at 11.47 and the fire was under control at 13.09.
Fire crews from West Hampstead, Paddington, Willesden and Kentish Town fire stations attended the scene.
The cause of the fire is under investigation.
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