the suburbs, where stand–alone houses are the rule, lots may be wide by deep, as in the Chicago suburb of Naperville. Manufacturing and commercial buildings were segregated in other areas of the city. Alongside suburbanization, many companies began locating their offices and other facilities in the outer areas of the cities, which resulted in the increased density of older suburbs and the growth of lower density suburbs even further from city centers. An alternative strategy is the deliberate design of "new towns" and the protection of green belts around cities. Some social reformers attempted to combine the best of both concepts in the garden city movement. In the U.S., 1950 was the first year that more people lived in suburbs than elsewhere. In the U.S, the development of the skyscraper and the sharp inflation of downtown real estate prices also led to downtowns being more fully dedicated to businesses, thus pushing residents outside the city center. Worldwide In many parts of the developed world, suburbs can be economically distressed areas, inhabited by higher proportions of recent immigrants, with higher delinquency rates and social problems. Sometimes the notion of suburb may even refer to people in real misery, who are kept at the limit of the city borders for economic, social, and sometimes ethnic reasons. An example in the developed world would be the banlieues of France, or the concrete suburbs of Sweden, even if the suburbs of these countries also include middle-class and upper-class neighborhoods that often consist of single-family houses. Some of the suburbs in most of the developed world are comparable to several inner cities of the U.S. Africa Following the growth of the middle class due to African industrialization, the development of middle class suburbs has boomed since the beginning of the 1990s, particularly in cities such as Cairo, Nairobi, Johannesburg, and Lagos. In an illustrative case of South Africa, RDP housing has been built. In much of Soweto, many houses are American in appearance, but are smaller, and often consist of a kitchen and living room, two or three bedrooms, and a bathroom. However, there are more affluent neighborhoods, more comparable to American suburbs, particularly east of the FNB ("Soccer City") Stadium) and south of the city in areas like Eikenhof, where the “Eye of Africa” planned community exists. This master-planned community is nearly indistinguishable from the most amenity-rich resort-style American suburbs in Florida, Arizona, and