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The Practice

Opsis Design is a London based architecture and design studio, founded by Gregory Mc Kinney and Nikolas Tsounakis. The practices portfolio, of built and planned projects, includes private and developer-led residential, retail, commercial and hospitality, including work on sensitive listed buildings. Our varied and diverse experience enables us to tailor projects to the specific needs of each individual client. Through a journey of collaboration and investigation, our team of Architects, Interior Designers and Project Managers offer a holistic approach to create unique environments for individual families and international companies alike.


Opsis Development is our affiliate construction company. With our experienced projects managers and craftsmen, we offer an end to end design and build service for boutique projects and private residences.

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