The project is financed from the university's internal funds and donations.
The government is building 4,120km of roads countrywide.
The plant will have a 40MW installed capacity.
Sections of the highway are damaged, with broken drainage covers.
114 applications were received for the 104 apartments that were being sold off-the-plan.
The facility will house banks, exhibition halls, food outlets and venues for lectures.
The provisional budget for the project has been set at Sh4 billion.
The office block adopts green architecture.
Donald Trump, who has golf resorts around the world, is among 43 other interested parties.
The investors are required to complete the project over a maximum of six years.