The Office of the Police and Crime Commissioner for Gwent and Gwent Police are now working with BAM to develop a design through to a planning submission to be lodged before the end of the year.
If this is approved BAM could start work on the Llantarnam site on Cwmbran by May next year.
The lead designer is Atkins and proposals include a significant amount of external works to create roads and access.
Craig Allen, BAM’s Cardiff-based construction director with responsibility for South Wales, said: “Across the UK BAM has a strong suite of high profile law and order schemes, having created the new Humberside Police HQ and the new Metropolitan Police HQs.
“Our facilities management business manages services inside police HQs. This experience informs our ability to deliver these high quality new facilities for Gwent and adds to our extremely strong and historic portfolio of schemes in South Wales.”