The renovation of the 115 sq.m. apartment in the center of Volos focuses on upgrading functionality and aesthetics, adapted to modern living needs. With three spacious bedrooms, a bathroom and additional WC, the apartment offers comfortable spaces for a family. The layout of the kitchen, dining room and living room in a long and narrow layout required special attention to achieve sufficient lighting. To ensure brightness throughout the space, strategically placed mirrors were used, which reflect natural light and enhance the sense of depth. At the same time, various lighting sources were integrated – hidden lighting, pendant lights at different heights that ensure a pleasant stay. The renovation also focused on incorporating practical storage solutions. Closets and hidden storage points were created in strategically chosen places to ensure sufficiency of spaces without disrupting the flow of the space. “Internal Construction for Visual Expansion” refers to the process of constructing or shaping a space in such a way as to create the feeling that the space is larger than it actually is. This is achieved through the correct use of light, materials and architectural elements, which “expand” the visual perception of space. The words “Internal Construction” suggest that this process takes place within the confines of an existing space, while “Visual Expansion” refers to the sense given to the observer that the space is more open, wide or free. In practice, this means using natural light, mirrors, light color palettes and specific architectural techniques to visually “expand” the long narrow space of the apartment.