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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 is an architect and founder of MAS. He graduated from Rice University in Houston and worked at award winning international architecture offices such as SO-IL and Mitchell | Giurgola Architects in New York, and Herzog & De Meuron in Basel prior to establishing MAS.  Through his previous experience, Kerim has served as a design lead on a diverse array of projects ranging from a contemporary art museum in Hong Kong to an interactive stage design for a Japanese choreographer in New York.  His work has been published and exhibited by leading institutions such as the Chicago Architecture Biennial, Cooper Hewitt Design Museum in New York and the New York Times.

In addition to his practice, Kerim is a firm believer in academic engagement and has previously served as a visiting critic at Columbia University and Kadir Has University.


Derya Tezel
Managing Director


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 15 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 10 years of experience with an exciting new perspective at MAS.

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