Firefighters were called to a fire at an unoccupied library on Hampton Road West in Feltham this morning.
Part of the single storey building was damaged by fire.
Four fire engines and around 20 firefighters from Heston, Feltham, and Twickenham fire stations, attended the incident.
The Brigade was called at 0724 and the fire was under control at 1000. The cause of the fire is under investigation by the Brigade and the Metropolitan Police.