AfDB has reportedly declined to disburse the first instalment of the loan.
The Garissa solar power plant will produce 76,470 megawatt hours (MWh) a year.
The government plans to leverage on the private sector to build affordable houses.
NLC is finalising compensation matters with all the affected landlords.
The project was conceived by Wimberley Allison Tong & Goo.
The project has faced controversy since its July 2013 commissioning.
Sanlam Towers will house the firm's headquarters in about three floors.
Groupe ADP beat intense competition with several multinationals to clinch the deal.
China Wu Yi is expected to complete the 49km road in 24 months.
The project is expected to promote the use of low cost building technologies.
Nine people were believed to be working at the site when the incident occurred.
Developers will be allowed to build up to 75 floors in high-density areas.
The much-awaited summit will take place on June 12-13, 2025.