Five fire engines and around 35 firefighters attended a fire on Upper Richmond Road in Putney.
The fire occurred in an eight-storey mixed-use building made up of homes and offices. A tumble dryer in an office on the third floor was destroyed by fire.
The Brigade was called at 2104 and the fire was extinguished by 2142. Crews from Fulham, Battersea, Hammersmith, Richmond and Clapham fire stations attended the scene.
The cause of the fire is under investigation.