Valence bond theory (VBT) was developed by Linus Paulin. It assumes that the metal-ligand bonds are formed by donating an electron pair by the ligand to the metal and thus form a coordinate bond between the metal and ligand. Economic, social, and political sharing creates a strong bond between Nairobi city and the three county towns of Kiambu, Machakos, and Kajiado. In the modern dispensation, agglomeration of neighboring urban centers and their adjacent rural areas are transforming into regional economic development areas guided by political outline. There is a likelihood that cities adjacent to each other can grow and expand until they are joined, forming a formidable economic development bloc. Nairobi, Kiambu, Mlolongo Athi River, Machakos, Ngong, Kitengela, and Kajiado have a trend that, in 25 years, they will have merged into a conglomeration of a mega urban area. This paper empirically examines the four-county towns: Nairobi, Machakos, Kiambu, and Kajiado, using a geospatial perspective to assess the probability that Nairobi Metropolitan Area can change into the Greater Nairobi Metropolitan Region through integration. Our case study is premised on the coupling distance between the urban centers is made to be understood because of the metal valence bond theory. That is how sharing resources of neighboring urban centers with their counties can be made into a regional economic development hub. We found that: There are Challenges facing the Greater Nairobi Metropolitan Region integration process. Industrial satellites; EPZ in Athi River Machakos County and Thika in Kiambu County are spillovers from Nairobi city and vital to the peripheral counties' industrialization. The current infrastructure (Roads, railways, water and sewer systems, electricity supply, and airports