The Interior Design Project for the new location British Side Language School in Barbaros Boulevard in Besiktas - Istanbul was prepared in the summer of 2009. With a total area more than 3000 m² spread in 9 levels, the design was built at the end of summer in approximately 3 months. The construction was planned in steps; first the classroom and office areas in order to accomodate the fall semester. The ground level construction was completed in the second stage. The design principles of the project can be named as functionality, fresh and dynamic surroundings, constructional practicability.