The effect of social networking and needs on the cost of housing estate

Since 1950s, housing problems have emerged in our big cities due to migration from the country. For a good solution, big scale housing projects were designed and developed by Emlak Bankasi in 1960s. But these projects have never been enough to solve the problem due to limited financial investments. In 1980s, residential investments are increased and constructions completed shortly. But the quality of life and requests were unforeseen because of the social life connections and needs were not designed properly.In this research two big residental projects constructed by Ant Yapi in Istanbul, three projects constructed by TOKİ and seven different projects which are delegated to different construction companies by Emlak Bankasi in Istanbul, Ankara, Izmir and Izmit are researched to find out the avarage investment for social networking and needs according to avarage m2 of one unit. According to the elements which has important effects on investment such as number of buildings, density, Site-coverage ratio and Flor area ratio, the frame of the investments? range are defined by comparing to the one unit cost of a building.