Residents who had to leave their homes when a fire broke out behind a row of shops have been allowed to return.
About 80 people were taken to Ealing Town Hall in the early hours of Friday following the fire in rubbish in South Ealing Road in Ealing.
The surrounding area was evacuated as fire crews worked to cool a gas cylinder at the back of the building.
Road closures have been removed but a small area remains cordoned off while investigations continue.
The evacuation affected 500 homes with around 80 people taking refuge in the town hall, said an Ealing Council spokeswoman.
South Ealing Road had to be closed at Popes Lane and buses were being diverted away from the area.
Little Ealing Primary School and Mount Carmel Catholic Primary School were also closed for the day.
The 200m cordon around the affected area was lifted in the early hours of Saturday.