Why landlords from Kilimani, Kileleshwa are staring at empty houses

There has been rapid transformation of posh estates in Nairobi like Kilimani, Kileleshwa, Lavington, Hurlingham and Westlands. Multi-storey residential buildings dot these estates that were previously characterised by bungalows under controlled development. The high-end areas were the epitome of serenity, with trees and manicured lawns that gave residents a sense of class. Should this not be great news on the inevitable lowering of rent, which will eventually open doors to more Nairobians to the former posh residential areas?

Jima, Nairobi