AMEC is set to claim a £20 million deal to build new government headquarters in Newcastle upon Tyne.
The firm is understood to be in negotiations with developer Hanro on a scheme to build the home of the Government Office for the North East (GONE) in the city centre.
The government office has signed an agreement with the local developer to move into the final phase of its Citygate development at the junction of Gallowgate and St James Park.
Hanro has turned to Amec after the contractor completed the first phase at Citygate.
GONE needs new offices to replace its current site, Wellbar House in Gallowgate, which it has occupied since 1963. The new offices will house around 400 government staff.
Work on site is due to begin in March with the demolition and relocation of Gallowgate coach station. The office is scheduled for completion in June next year before staff move in the following August.
n Amec is chasing a £25 million office deal in nearby Gosforth.
The firm is up against Laing, Shepherd and Balfour Beatty to build the final phase of building society Northern Rock's headquarters.
Laing has already built the first two stages and one source admitted: 'The client is probably only tendering to check that Laing is still competitive.'