A fast-food restaurant offered refuge to residents who fled a fire in a Marylebone apartment block on Sunday night (March 15).
Around 50 people were evacuated from their homes, in Crawford Place, after the blaze broke out at around 10pm in a corridor on the eighth floor.
It took 60 firefighters more than two hours to bring the fire under control.
London Fire Brigade, which was called at 10.15pm, said evacuated residents had waited in a local fast-food restaurant after being evacuated.
Westminster Council later tweeted that it was working with the British Red Cross to provide them with shelter at nearby Seymour Leisure Centre.
The fire brigade said crews had helped residents leave the building after the corridor and part of the lift shaft and lift lobby had caught alight. It said no one was believed to have been injured.
Station manager Matthew Burrows, who was at the scene, said: "The communal areas on the eighth floor have been badly damaged but thankfully the fire doors did their job and helped stop the fire spreading into flats.
"Crews evacuated around 50 residents and they waited in a local fast-food restaurant.
"We are hopeful that some will be able to return to their flats shortly."
Eight fire engines and an aerial ladder platform from North Kensington, Soho, Paddington, West Hampstead and Kentish Town fire stations attended the blaze.
A Westminster Council spokeswoman said, on Monday morning, that police were investigating the cause of the fire and work was being done to repair the smoke damage so residents could return as soon as possible.