In the process, some of Kenya's most food productive land not to mention aesthetically please landscapes will disappear for good. The whiners will no doubt be wheeled to talk about GoK not responding quickly enough to flooding, droughts et al. The time to act is now before our food insecurity becomes acute driven by lack of enough arable land.
A greenbelt zoning does what it says on the tin. It puts a belt around designated green areas so as to protect them from planned (or in our case unplanned) buildings. In my humble opinion, Kiambu is a rich agriculture district that should be designated a green belt zone so that crop production can continue in the area. On the other hand, places like Karen should be opened up for further building.