Developers unveiling projects targeting people earning less than 30,000 a month.
114 applications were received for the 104 apartments that were being sold off-the-plan.
The provisional budget for the project has been set at Sh4 billion.
The factory has a capacity to produce 126,720 expanded polystyrene panels (EPS) panels a year.
The new houses will be built using the Expanded Polystyrene (EPS) technology.
The homes, costing Sh1m for a two-bedroom unit, will be built on 1,000 acres in Athi River.
The centres will promote the use of location-specific building materials.
Development comprises 81 residential houses, of which 20 were completed in phase one.
The luxury homes are centred around waterholes and salt licks.
The Nairobi unit will serve the East African market.