The consultancy has already been appointed project manager on the restoration and beat several major players to the separate QS role, including Capita, Building understands. Glasgow practice Page/Park were appointed architect back in April.

G&T will support the GSA with the restoration project acting as the interface between the school and the construction and design teams, working on a day to day basis with Liz Davidson, the GSA’s senior project manager and the lead consultant of Page/Park.

A spokesperson for GSA said that G&T submitted a commercially competitive tender during the “extremely competitive process”.

GSA added that G&T also put forward a high quality and senior team, which includes a conservation accredited quantity surveyor who they believe will be “very beneficial” to the restoration project.

“As would be expected with a project of this nature we had a lot of interest and Gardiner & Theobald was part of a very strong shortlist,” said Liz Davidson back in March when G&T was appointed project managers.

“I am looking forward to working proactively with them to create a fully rounded and contributory team ethos on this exceptional project - which is going to require an exceptional team and equally exceptional and creative effort.”

David Logue, partner at G&T’s Glasgow office, added: “Watching the footage of the fire at the Mack on 23rd May last year was heartbreaking, like witnessing the pain and suffering of an old friend. The building truly is one of Scotland’s national treasures and we are honoured that G&T has been entrusted to manage its restoration.”

The Mackintosh Building is widely recognised internationally as one of the most important buildings of the early 20th Century and in 2009 it was voted by architects in a poll, organised by the Royal Institute of British Architects (RIBA), as the most architecturally significant building constructed in Britain in the past 175 years.

The appointment of a contractor still some way off, but GSA is aiming to complete the restoration of both the Mackintosh Building and the McLennan Galleries in time for the 2017/18 academic year.