Contractors will obtain loans guaranteed by the Treasury to design, build and maintain roads.
New technology saves home-owners loads of cash in terms of labour fees.
The houses will be built using panels made from compressed rice and wheat husks.
The loans range from Sh130,500 to Sh175,000 per every 20 square metres.
The facility, which will constitute 3,300 solar panels, will generate 1,256MWh a year.
The new product will be used in place of other cement and lime varieties.
The project has 178 three-bedroom houses and 171 four-bedroom units.
The construction loans will be offered at interest rates of between four and six per cent.
The factory has a capacity to produce 126,720 expanded polystyrene panels (EPS) panels a year.
Roofing giants are increasingly finding Kenya as a great investment destination.
Talks are underway for China to fund a new highway and rail extension.
The Chinese-funded Orpower 22 power plant will take 17 months to complete.
Bedsitters will rent for Sh3,200 per month on a 30-year rent-to-own plan.