Firefighters led 13 people to safety following a partial collapse of the roof at a building on Chesterton Road in Ladbroke Grove.
Crews were called to reports there had been a partial collapse of the external fascia from the roof of a row of terraced houses converted into flats.
Station Commander Brett Loft, who was at the scene, said: “Four properties were affected by the collapse, which involved part of the front of the parapet wall at roof level.
“The debris had fallen onto the front steps of the properties and had trapped people inside.
“Firefighters led 13 people from different flats within the building to safety using ladders to bridge the gap across the steps. Fortunately no one was injured.”
The Brigade was called at 2146 and the incident was over for firefighters by 0108 (Monday). Four fire engines from Kensington, Paddington and Battersea fire stations, three fire rescue units from Edmonton, Croydon and Heston fire stations and a number of support vehicles were at the scene.