Housing group Circle Anglia is seeking bidders for a 4-year new build housing framework worth between £500m and £1bn.
The contract is divided up into lots by value and by region – covering the Midlands, the South East, the East of England and London.
Work is not limited to new build housing, with some refurbishment projects to be delivered.
Up to 405 participants will deliver work for the giant contract, though far fewer are expected to win places.
Circle is a group of nine registered providers, together managing over 65,000 homes around the UK.