The contract stipulates core infrastructure management, through the hosting of business applications and support services.
The contract also covers the upgrade of the corporation's desktop and server infrastructure, which it admitted needs to be more resilient and stable. The service aims to go live 2 January 2008, with service transformation being phased in over the following six months.
The outsourcing deal reflects the changing organisation needs of a government agency with a £3.9bn budget for 2006 to 2008, during which the organisation aims to fund 84,000 new homes.
"The contract provides for flexibility and is scaleable," said Peter Marsh, the Housing Corporation's deputy chief executive, "We are delighted to award this contract to Steria after an extensive procurement process."
Under the government's new HomeBuy initiative, it hopes to encourage 35,000 new home buyers on to the property ladder.