North East social housing partnership, Spirit, is seeking contractors for a £445 million framework deal.
The four year framework includes new build, maintenance and demolition works for homes across the Tees Valley, Hartlepool, Sedgfield and surrounding areas.
The framework is to be split into five lots. The first £150 million lot includes new build and maintenance work of up to £2.5 million in value, according to tender documents.
Lot two is for works up to £10m. It has a total value of up to £200m. Lot three is for jobs over £10m and is worth up to £75m in total.
Lot four is for non Housing work worth £15m, while lot five is for demolition work worth up to £5m.
Applications must be received by 14 November.