The event is organised twice a year by Unique Homes Magazine.
The sector grew by 6.4pc in 2019, down from 6.9pc in 2018.
The estate comprises 100 single-storey 3-5 bedroom luxury houses.
The Kisaju View Park - 2 comprises three and four bedroom houses.
The Athi View Estate targets middle to high income earners in Nairobi.
New laws will open up high-end estates west of Nairobi to commercial property developers.
Banks are cutting back lending to builders amid fears that they may default on their loans.
The plant will be the first to make photovoltaic (PV) solar panels in the region.
The development spans 41 acres and will comprise 2,500 one-bedroom units.
Project seeks to improve the living conditions of 5.4 million slum dwellers.