The force hopes to build a new Police Investigation Centre and Northern Accommodation Building, which will be situated just off the A43 next to the A6003 between Kettering and Corby and provide work space for approximately 350 staff.
Due to budgetary constraints only the PIC will be constructed initially, with a decision on whether to proceed with NAB due before the end of March.
The new 20-cell centre would replace outdated facilities at Corby and Kettering police stations.
Adam Simmonds, Northamptonshire Police and Crime Commissioner, said: “The proposed new purpose built operational buildings will allow more and more police officers to work out of the north of the county and due to it’s location will help us to increase response times to rural communities.”
The force plans to save around £40m by selling a number of its buildings – including its current HQ at Wootton Hall in Northampton.
This will see a phased exit from the site over the next two and a half years.
Proposals for the future of the Wootton Hall Park site – which is jointly owned by the Office of the Police and Crime Commissioner and Northamptonshire County Council– provisionally include the sale of part of the site that includes the buildings which currently comprise part of the Police Headquarters to the Education Funding Agency for the creation of a new school.