摘要：Abstract Urban development differs from one country to another. The various aims and ways differ according to the different economical, social and environmental situations. Many countries followed the policy of establishing new cities in the aim of redistribution of the population or to be as a nucleus that assists in encouraging the economic activity of a certain region or to be a new capital. Egypt has adopted the policy of establishing the new cities for national aims. Many cities were being developed according to development stages, from the first generation, the second generation to the third generation. New Cairo is one of the second generation cities. It is characterized by its distinctive developed location. It has been developed as a result of the economy and investment politics of the Egyptian government at this time, which made it the focus of real estate investment. However, this resulted in negative influences on the sustainability. That is made clear in the different stages of developing the city, – before laying the general comprehensive plan, during preparing the plan and the successive stages of development till now. This research reviews the basis of development of the new cities. The influence of the real estate investment in some Arab countries, then it handles the case study – “New Cairo city”. Discussing all the investing factors made the city in its current status. Then comes the recommendations in a trial to get an alternative structure to achieve sustainability in light of the current determinants and growth stages.
