360º Penthouse is a renovation project of a 400 m2 apartment. The main feature of the project is the seamless and undistracted 360o view to the sea and to the whole city of Thessaloniki. Consequently, this led to the decision that all spaces will frame images of the sea and the city, introducing them into the interior of the house. In terms of the materials, marble was chosen as a single floor covering material for all common successive spaces, with the aim of unifying them, while at the same time creating a neutral base. On this base the view and the abundant natural light are reflected. Natural materials such as oak and marble, make a contrast with the metallic details and artificial materials to create sub-spaces in a discreet way. As a result, the interior of the house functions as an open plan space that allows the unobstructed and diffuse circulation of the user and the light. The chosen tonal contrasts, help to create a calm and welcoming interior. Finally, the architectural language that can be found in the dividers of the spaces but also in the design of the furniture, enhances a holistic experience of the space.