This lecture presents four architectural projects by the instructor, showcasing the transformation of urban environments through public buildings, collective housing, and small houses. The first project focuses on a bus terminal connecting different transportation interfaces in a city area that was previously neglected. The second project involves the renovation of a social housing complex to create more spacious and livable homes. Lastly, the instructor shares two unique residential projects, one featuring a pavilion-style house with a swimming pool and the other inspired by the architectural principles of a renowned architect. Throughout the lecture, the instructor emphasizes the importance of preserving existing structures while incorporating modern design elements.