Tumay Architecture exists since 1985 as design office within Koray Group and is established as an independent architectural office ‘’Tumay Architecture‘’ in 2001. Between 1985 and 2000 many of the prestigious high rise buildings in Istanbul were designed by ‘’Tumay Architecture‘’ with the design team at present.

The landmark for the early high rise buildings in Istanbul at mid 80’s was Yapı Kredi Plaza with the concept of the intelligent building at Maslak axis ...