Firefighters were called to reports of a partial building collapse on Stoke Newington High Street.
Scaffolding at the front of a range of shops and masonry from the roof had fallen into the pavement.
Around 20 people were evacuated from properties via the rear of the building.
People were asked to avoid the area.
The Brigade was called at 0928 and the incident was over by 1243. Fire crews from Stoke Newington and surrounding stations were at the scene