Under Adshead's original plans, Lusaka was proposed as a pure administrative centre, with no industry or large African population; he commented at one point that it "could never become an important city". Under Bowling's revised plans, there were areas designated for both light and heavy industry, as well as a business area. He gave prominence to the airport, as well as to the government house, albeit under a simpler design than that envisaged by Storrs. Both men had built racial segregation into their plans, dividing the city into "native" and "non-native" areas, with residential areas and services for Africans placed on the southern periphery of the city. Despite producing these plans, both Adshead and Bowling had left Rhodesia before the Lusaka week, and the remainder of the building was left to Dutton and a small team of white officials. The city's footprint covered a large area, even at this early stage, despite much of it being undeveloped. This was part of a policy devised by Adshead intended to allow internal expansion, rather than the usual central core with suburbs added outside.