Competitions
| Date | Name of Competition | Explanation | Location | Client | Design Team | Associated Architects |
| 2010 | Ideas Competition on Mosque Design | National Architectural Competition Mention Award | Turkey | Metropolitan Municipality of Kayseri | Tülin Hadi Cem İlhan Türkan Kahveci Aydoğan Özsoy |
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| 2009 | Göztepe Junction Pedestrian Link | National Architectural Competition Mention Award | Göztepe Istanbul | Metropolitan Municipality of Istanbul | Tülin Hadi Cem İlhan |
Şefika Güner Keriman Afyonlu Türkan Kahveci Aydoğan Özsoy |
| 2009 | TOKI Kayabaşı Housing Settlement | Architectural Competition Equivalent Award |
Kayabasi Istanbul | TOKI | Cem İlhan | Keriman Afyonlu Türkan Kahveci Aydoğan Özsoy Sezgin Bilgin |
| 2007 | Maltepe Regional Park | National Architectural Competition Mention Award | Maltepe Istanbul | Metropolitan Municipality of Istanbul | Tülin Hadi Cem İlhan |
Şefika Güner Ayşegül Akgül |
| 2006 | METU Northern Cyprus Campus Student Residents 3rd Phase | Invited Competition 1st Prize | Cyprus | METU Foundation | Tülin Hadi Cem İlhan |
Hakan Ceritoğlu Gülnaz Güzeloğlu Aydoğan Özsoy Şefika Güner |
| 2005 | İstanbul Maritime Museum | National Architectural Competition 2nd Prize | Besiktas Istanbul | Naval Forces Commandership | Tülin Hadi Cem İlhan |
Şefika Güner Arcan Aksakaloğlu |
| 2005 | METU Technopark SATGEB 2 Complex | Invited Competition 1st Prize | METU Ankara | METU Foundation | Tülin Hadi Cem İlhan |
Şefika Güner Arcan Aksakaloğlu |
| 2004 | Plug and Play | International Urban Design Competition 1st Prize | Istanbul | Chamber of Architects | Tülin Hadi Cem İlhan |
Esra Gemici Işıl Ekin Çalak |
| 2004 | Gaziosmanpaşa City Centre | National Architectural Competition Entry | Gaziosmanpaşa Istanbul | Gaziosmanpaşa Municipality | Tülin Hadi Cem İlhan |
Arcan Aksakaloğlu |
| 2003 | Yeşilyurt Sports Complex | National Architectural Competition 1st Prize | Konak İzmir | Konak Municipality | Tülin Hadi Cem İlhan |
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| 2003 | METU Northern Cyprus Campus Administration, IT and Library Buildings | National Architectural Competition 1st Prize | Cyprus | METU Foundation | Tülin Hadi Cem İlhan Zeynep Ataş |
Arcan Aksakaloğu Münevver Dinand (Cyprus) Özlem Türker (Cyprus) |
| 2003 | Ideal Residence for 100.000 Pilgrims in Makkah | International Urban Design Competition 1st Prize | Mekke Saudi Arabia | Al Dar Real Estate Investmens | Tülin Hadi Cem İlhan Dilek Derman Bünyamin Derman |
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| 2001 | ISTON Kiosks | National Architectural Competition Entry | Istanbul | Metropolitan Municipality of Istanbul | Tülin Hadi Cem İlhan |
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| 2000 | Çuhadaroğlu Expo Pavillion | Best Expo Design Award | Istanbul | Çuhadaroğlu Aluminyum | Tülin Hadi Cem İlhan |
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| 1999 | Dalaman International Airport | National Architectural Competition Mention Award | Muğla | State Airport Authority | Tülin Hadi Cem İlhan Sevinç Hadi |
Şebnem Kürşat Serdar Makinacı |
| 1998 | Gallipoli Peace Park | International Competition Entry-Mention Award | Gallipoli Dardanels | Ministry of Forests | Tülin Hadi Cem İlhan Sevinç Hadi Murat Germen |
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| 1996 | Bosnia Herzegovina Monument | National Architectural Competition 1st Prize | Ankara | Metropolitan Municipality of Ankara | Tülin Hadi Cem İlhan |
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| 1996 | Cem Culture House Architectural Competition | National Architectural Competition 1st Prize | Cem Culture Foundation | Tülin Hadi Cem İlhan |
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| 1995 | TARIS Headquarters | National Architectural Competition 1st Prize | Alsancak Izmir |
TARIS | Tülin Hadi Cem İlhan |
Esra Çebi Özlem Ayan |
| 1994 | Konya Karatay City Centre | National Architectural Competition 1st Prize | Konya | Greater Municipality of Konya | Tülin Hadi Cem İlhan |
Şebnem Kürşat Serdar Makinacı |
| 1993 | GAP Culture and Arts Centre | National Architectural Competition 1st Prize | Gaziantep | Ministry of Culture | Cem İlhan Özkan Sunar |
Esra Çebi |
| 1992 | Ankara City Gates | National Architectural Competition Mention Award | Ankara | Metropolitan Municipality of Ankara | Cem İlhan Özkan Sunar |
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| 1992 | KOSGEB Headquarters | National Architectural Competition | Ankara | KOSGEB | Cem İlhan Özkan Sunar |
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| 1992 | CSO Opera and Chorus Complex | National Architectural Competition Mention Award | Ankara | Ministry of Public Works and Construction | Cem İlhan Özkan Sunar |
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| 1992 | Fethiye Commercial Centre | National Architectural Competition 1st Prize | Fethiye Muğla | Municipality of Fethiye | Cem İlhan Özkan Sunar |
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