This lecture presents four architectural projects by the instructor, focusing on urban transformation, collective housing, and innovative design solutions. The first project involves revitalizing a decaying urban area with a new bus terminal and green park. The second project showcases the renovation of social housing units to provide more spacious and livable homes. The final two projects feature a unique pavilion-style house with a swimming pool and a tribute to the architect Alvaro Siza with a modern concrete and wood design.