1953 Kale Kilit was established.
1989 Construction of Kale Business Center was completed. 
1995 Private Elementary School was opened. 
2007 Kale Outlet Center was put into service. 
2010 Life began in Kale Özgür Evler. 
2011 3S Kale Gayrimenkul Geliştirme ve Yatırım A.S. was established. 
2012 3S Kale Yapı ve Ticaret A.S., was established.
2014 3S Kale Enerji Üretim A.S., was established. 
2015 3S Kale Holding A.S., was established.  
2016 3S Kale is undersigning projects of future in real estate and energy
2017 Life in your dreams is becoming real in 3S Firuze Residences.