The works packages worth around £100m will cover construction of a new multi-storey car park and associated site development works at the Hertfordshire command centre.
An official tender is expected to be published in October for a contract expected to run from April 2026 to September 2028.
The enabling phase will pave the way for a larger redevelopment scheme at Northwood HQ, which acts as the UK’s permanent joint operations command centre and home to NATO’s Allied Maritime Command.
Planning consent for the overhaul was granted earlier this year under a Special Development Order, allowing the MoD to build up to 10,550m² of extra residential space and nearly 29,000m² of floorspace for other operational buildings.
Interested bidders are being urged to monitor the Defence Sourcing Portal for the full invitation to tender in autumn.
For more information email MoD.