OTTOMAN ARCHITECTURE-Late period (1876–1922): The "National Architectural Renaissance

The final period of architecture in the Ottoman Empire, developed after 1900 and in particular put into effect after the Young Turks took power in 1908–1909, is what was then called the "National Architectural Renaissance" and which gave rise to the style since referred to as the First National Style of Turkish architecture.The approach in this period was an Ottoman revival style, a reaction to influences in the previous 200 years that had come to be considered "foreign," such as Baroque and Neoclassical architecture, and was intended to promote Ottoman patriotism and self-identity.This was actually an entirely new style of architecture, related to earlier Ottoman architecture in rather the same manner was other roughly contemporaneous "revival" architectures, such as Gothic Revival Architecture, related to their stylistic inspirations. Like other "revival" architectures, "Ottoman Revival" architecture of this period was based on modern construction techniques and materials such as reinforced concrete, iron, steel, and often glass roofs, and in many cases used what was essentially a Beaux-Arts structure with outward stylistic motifs associated with the original architecture from which it was inspired.It focused outwardly on forms and motifs seen to be traditionally "Ottoman," such as pointed arches, ornate tile decoration, wide roof overhangs with supporting brackets, domes over towers or corners, etc.
Originally, this style was meant to promote the patriotism and identity of the historically multi-ethnic Ottoman Empire, but by the end of WWI and the creation of the Turkish Republic, it was adopted by the republican Turkish nationalists to promote a new Turkish sense of patriotism.In this role, it continued into, and influenced the later architecture of, the Republic of Turkey.
One of the earliest and most important examples of this style is the Istanbul Central Post Office in Sirkeci, completed in 1909 and designed by Vedat Tek (also known as Vedat Bey).
Other important extant examples include the Istanbul ferryboat terminals built between 1913 and 1917, such as the Besiktas terminal by Ali Talat Bey (1913), the Haydarpasa terminal by Vedat Tek (1913), and the Buyukada terminal by Mihran Azaryan (1915).Another important extant example is the Sultanahmet Jail, now the Four Seasons Hotel Sultanahmet.
In Ankara, the earliest building in the style is the building that now houses the War of Independence Museum and served as the first house of the Turkish Republic's National Assembly in 1920.It was built in 1917 by Ismail Hasif Bey as the local headquarters for the Young Turks' Committee of Union and Progress.
İn the late Ottoman Empire Löle Gizo Mimarbaşı contributed some important architecture in Mardin Cercıs Murat Konağı, Şehidiye minaret,The P.T.T. building are some of his work. Pertevniyal Valide Sultan Mosque, Sheikh Zafir Group of Buildings, Haydarpasha School of Medicine, Duyun-u Umumiye Building, Istanbul Title Deed Office, Large Postoffice Buildings, Laleli Harikzedegan Apartments are the important structures of this period when an eclectic style was dominant. Raimondo D'Aronco and Alexander Vallaury were the leading architects of this period in Istanbul. Apart from Vallaury and D'Aronco, the other leading architects who made important contributions to the late Ottoman architecture in Istanbul included the architects of the Balyan family, William James Smith, August Jachmund, Mimar Kemaleddin Bey, Vedat Tek and Giulio Mongeri.