The Mackintosh Building at the Glasgow School of Art is to be partially demolished after surveys revealed the building is in danger of sudden collapse

Work to partially dismantle sections of the building, which was destroyed by a fire earlier this month, is expected to begin in the coming days.

Glasgow City Council said today that recent remote surveys and close-in surveys from baskets suspended from cranes revealed more substantial movement in the walls of the building than previously thought.

This means a sudden collapse of parts of the building is “likely, rather than possible” and there is now a requirement to at least partially dismantle sections of the building “as a matter of urgency”, the local authority added.

However, the dangerous nature of the site which includes the Mackintosh Building and the O2 ABC is such that it will take around two days to devise a methodology for taking down the south façade, which is the most seriously affected part of the building. The West gable of the Mackintosh building has continued to deteriorate and the East gable has continued to move outwards.

It is not possible at this time to say exactly when the work will begin, but it will be as soon as possible.

While it is not possible to say for certain what the methodology will be, the demolition contractor has been asked to consider beginning at the Eastern side of the site. If this is possible it could make it more likely that we will be able to make the East wall safe and allow access to residents in Dalhousie Street.

Glasgow City Council’s head of building control, Raymond Barlow, said: “This building has undergone substantial stress in recent days. With each passing day a sudden collapse becomes more likely. It has become urgent that we take down the south façade. As the process begins it will be likely that the other walls will also need to be reduced.

“We do not know what effect this will have on the rest of the building so I have to be clear this site remains dangerous and is becoming more dangerous. It is particularly important that people observe the cordon which remains in place.”