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MAS is an architecture and design practice based in Istanbul. Through an iterative, concept-driven approach, the studio engages in projects of various scales and media ranging from custom-made furniture design to large-scale urban transformations. Guided by the specific needs and desires of each project, we work with an open design process that explores new spatial potentials, and hold a firm commitment to translating those ideas into reality.


Kerim Miskavi
Partner & Design Lead


Kerim Miskavi was born in Mersin, in 1989. He completed high school at Robert College in Istanbul and received his professional architecture degree from Rice University. At pioneering international architecture firms, SO-IL, Mitchell Giurgola and Herzog & De Meuron, he served as a designer and project lead for a diverse range of cultural and civic projects that have been exhibited in the Chicago Architecture Biennial, Cooper Hewitt Smithsonian Design Museum Triennale and published by the New York Times.

Upon his return to Turkey in 2018, he founded MAS, an iterative, concept-driven design practice that engages in projects of various scales and media. He has been awarded First Prize for Izmir University of Economics Guzelbahce Campus and the Purchasing Award for Erenkoy Mental Health Hospital in national design competitions. His completed projects have been selected for the Turkish Architecture Yearbook and World Architecture Festival. As a firm believer in disciplinary engagement, he has taught an undergraduate studio at Kadir Has University Faculty of Architecture, and previously served in juries at Columbia University and Bilgi University. He continues his practice as the founder and design lead of MAS.


Derya Tezel
Managing Partner


Derya Tezel earned her professional Bachelor of Architecture degree from Illinois Institute of Technology in Chicago.  At JAHN and Perkins + Will, she worked on globally recognized projects with various scales and programs including the Chicago O’Hare Airport Renovation, 600 North Fairbanks Residential Tower, Dubai Towers Istanbul and King Saud University.  Upon her return to Turkey, Derya managed many international and large-scale projects for the country’s leading architecture practice, Tabanlıoglu Architects, for 9 years.


Derya is cultivating her 20 years of professional experience and unique perspective through MAS’ mission of intellectual and innovative architecture.


Betül Ay
Senior Architect & Interior Designer


Betül received her Bachelor of Science degree in Interior Design and Master of Science degree in Architecture at Istanbul Technical University. She then completed the Master of Interior and Living Design Program at Domus Academy in Milan.

After gaining valuable design-build experience at Ekat & Cupal, ArtMim and Kontra, she added to her design expertise at Tabanlıoglu Architects where she was integral to some of the firm’s most prestigious projects including Tersane Istanbul, Izmir Turan, Design Miami Collectors' Lounge and Balhambar Library & Cafe for 5 years. 


Betül continues her passion for design while building upon her 15 years of experience with an exciting new perspective at MAS.

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