In this project, we have combined Eren Has Group's six-storey shop in the Grand Bazaar district of Istanbul with interior design inspired by the historical texture of the Grand Bazaar. We have determined all the departments that our client may need in his office. Automatic and high protective doors are positioned to grant the security, the name plate followed by a flashy showcase are positioned at the forefront. The basement is offered as a bank vault whereas a sales area is available at the entrance. On the mezzanine floor, four large screen televisions are positioned since our client has to follow the market at any time. First floor is a call center, second floor is an accounting area strengthened by lockable and sliding doors where a minimum of six personnel can be comfortably placed. The manager's room is located on the third floor. Our team aimed to provide an efficient workplace including an exclusive meeting section where the manager can finally meet with the privacy, comfort and dynamism he has been looking for within his office. On the fourth floor, a kitchen was designed to provide a qualified social area to the employees and the manager himself. On the other hand, the terrace floor was completely renovated and transformed into a social area where Eren Has Group can witness the exquisite view of the Grand Bazaar.