Ashe Construction workers at a site in Ilford London had a lucky escape earlier this week when the steel frame of the new £6.1m City Gates Christian Centre partly collapsed.
It is believed that the site team consisting of 22 workers had clocked off for the day minutes before the incident.
An investigation by the HSE is yet to determine what caused the five-storey steel structure to collapse.
A statement by Ashe said: “An Ashe rapid response team visited the scene and assisted the emergency services in securing the site last night. A 60m exclusion zone has been put into place.
“The site has now been handed back to us by members of the emergency services, and the Health and Safety Executive and forensic experts will start investigations into how and why the collapse occurred.
“Ashe Construction is doing all it can to assist the HSE and other appropriate parties.”