The £135m contract will see the firm build new council offices and 275 new homes in the Your Town Hall scheme.
Skanska pulled off another major office job in London in April, this time a £95m job for Helical Bar for an office/retail scheme called International place at Mitre Court.
Wates has a £84m PFI scheme in Hull for joint clients Riverside & Kingston-upon-Hull Council. Miller has a £78m job to build 10 care homes across Tyneside for Equitix
In the civils stakes, VolkerFitzpatrick came out as top contractor in April after securing work on a £140m waste treatment plant in Milton Keynes.
The rolling 12-month rankings table leader Balfour Beatty now has Kier snapping at its heels with just £40m worth of contract wins separating the two.
On civils work alone, Costain’s haul of over £1bn maintains a strong lead ahead of second place Balfour with around £730m of work wins over 12 months.
While the most successful builder in the 12-months to April is Kier which has racked up over £1.4bn in contract wins.