The transformation of architecture interiors in apartments, flats and lofts requires a certain approach. Designing layouts and installations for compact volumes, decoration of a characterless 'block' and harmonious integration of multiple functional utilities into one whole represent a true challenge. Designing the interior for an apartment, however, offers numerous challenges and propositions: circulation between different functions of the habitat, light penetration, respect for space, creation of perspectives, optimization of available space, etc. In this book, renowned architects and designers present their most representative recent works: timeless apartments, urban or coastal, classic contemporary style, extremely comfortable duplex or triplex apartments of more than 400 square meters, industrial buildings transformed into characteristic lofts or penthouses, and finally, five apartments where contemporary design reigns. This publication substantially illustrates a source of inspiration for those who own an apartment, whether permanently or occasionally during weekends, or even a secondary residence in the city.