As at 2019, Nairobi city has overgrown it's borders into the farmlands of Limuru, Kiambu, spanning all the way to Machakos turn off and down to Isinya near Kajiado.
This now gives Nairobi a diameter of about 300km.
Ever heard of Al-Salfiya Park in Hullingharm Nairobi Kenya!?
Off Magadi Road, access from Bogani Road. The place is highly developed.
We have high end Bogani villas just next, then Saifee Park, which looks like any city in the World