'Aberdeen is the perfect location' was how Great British Energy chief executive Dan McGrail described the city when Marischal Square was confirmed as the company’s permanent base in February. That decision has now moved from briefing note to building site, with fit-out works starting on Monday 25 May 2026 at the Aberdeen development that will become the public energy company’s headquarters. (gov.uk) The Government Property Agency says the start of works is a key milestone in setting up Great British Energy’s permanent home in the city centre. For Aberdeen, that means one of the government’s headline clean-power institutions is no longer just carrying a postal address in the city; it is beginning to take physical shape there. (gov.uk)

The works are due to run through summer 2026. According to the GPA, the fit-out will rework the layout to add a reception area and meeting rooms, while lighting and ventilation are being improved and the office is being redecorated and recarpeted. (gpa.gov.uk) It is practical, unglamorous work, but it is the sort of job that turns an announcement into a functioning headquarters. Great British Energy said in February that it was operating from the AB1 building and planned to move into Marischal Square later in 2026. (gbe.gov.uk)

Marischal Square was confirmed as Great British Energy’s permanent home on 12 February 2026, with the building leased and managed by the Government Property Agency through the company’s stay there. Great British Energy says the Aberdeen headquarters will host its main corporate functions, supply chain activity and major development work, including ambitions in deep-water offshore wind. (gbe.gov.uk) That gives the move more weight than a routine office relocation. On its official site, Great British Energy says it is an operationally independent company owned by the Secretary of State for Energy Security and Net Zero and formally established by the Great British Energy Act 2025. Government and company documents also say the wider Great British Energy and Great British Energy-Nuclear programme has more than £8.3 billion allocated over this Parliament. (gbe.gov.uk)

Aberdeen City Council co-leader Ian Yuill said in February that the city is 'at the forefront of the transition' while still protecting the existing oil and gas chain. That is the local case in plain terms: Aberdeen is being asked to carry both the memory of Britain’s energy past and a fair share of its clean-power future. (gbe.gov.uk) Great British Energy has been making a similar argument. Its official materials say Aberdeen’s depth of engineering and technical talent is one reason for choosing the city, while the Aberdeen Energy Taskforce launched in October 2025 was set up to push local jobs, investment and supply-chain gains from the transition. (gbe.gov.uk)

For readers across the North, from Teesside to the Humber, the question is a familiar one. Regional headquarters are easy to announce; the harder part is making sure the good jobs, supplier spend and decision-making power stay rooted outside Westminster. There are at least some early signs of movement. Great British Energy’s news pages say it is hosting a recruitment event in Aberdeen on 3 June 2026, and its recent strategy documents keep jobs, supply chains and industrial growth at the centre of the offer. (gbe.gov.uk)

For now, the concrete facts are straightforward. Work has begun, it is due to continue through the summer, and Marischal Square is set to become the permanent headquarters of one of the government’s most visible public energy projects. The GPA says the office is being built to support collaboration and productivity. (gov.uk) Aberdeen will judge it on a tougher measure than that. If this new base brings decent work, stronger local contracts and confidence back into the city centre, the fit-out at Marischal Square will stand for more than office refurbishments. It will show what regional public investment looks like when it starts to land properly.