The second half of the 19 th Century is a peri­od in which the effects of Tanzimat reforms in urban scale have taken place. The 6th Municipality Department which is the first municipality structured according to western urban management concepts, is an important example of that period. Surrounded by old city walls with its narrow streets and dense urban texture Galata, was having difficulty maintain­ing its trading function when the 6 th Dept. Municipality was established in 1857 in Beyoğlu District Galata, Tophane, Pera, Şişli. The area surrounded by the outer city walls of Galata was the residential area of various elli­ni: groups. The coastal region of Karaköy and Perşembe Pazarı District with a probably Genoesean grid plan was the commercial area. The need for broader streets and commercial buildings and rapidly developing commercial activity in this period had necessitated the radical restructuring of Karaköy coast which was one of the most important seaports of the Ottoman Empire. Finally, those functional transformations in the district have led to the development of residential areas around Galata Tower, towards Tünel Square and Taksim, and this was the area on which the new examples of Ottoman civil architecture had been raised on.