Under the plans, the group’s six regional centres will be reduced down to four, with the Wales the West division also merging with the North West.

The new operational structure will be Scotland & Northern, Central, Wales & West, Southern and London.

According to the Construction Enquirer, staff were informed of the proposed lay-offs in a pre-recorded video by recently appointed chief executive, Paul Hamer.

It is unclear how many Scottish jobs are under threat by the firm said it remained committed to business north of the Border.

The company said in a statement: “Following a strategic review of its business operations, the board of Sir Robert McAlpine Ltd today announced to its staff some changes to its overall structure and market approach.

“The changes will enhance both the resilience and agility of the business and create greater ongoing focus on delivering client value through operational and project excellence.

“The changes include the streamlining of the company’s regional operations and the reorganisation of head office and business support functions but do not affect any of its current site and project operations.

“Sir Robert McAlpine anticipates that all changes will be implemented in 2017.”

The company added: “We are streamlining our regional operations into four distinct divisions: Scotland & Northern; Central, Wales & West; Southern; and London.

“This new regional structure will increase consistency in service delivery and reduce duplication of operations to provide better client value.

“We are not pulling out of any region and remain committed to business across England, Scotland and Wales.”