Regent International in Hangzhou, a massive residential complex, has gained attention for its S-shaped design and dense population. Designed by Alicia Loo, it houses 20,000 residents across 36-39 floors and offers amenities like shops, dining, fitness centers, and more, creating a self-contained urban environment. While its affordability makes it appealing, with rents ranging from $200 to $600 per month, critics worry about overcrowding, lack of natural elements, and potential isolation. However, residents appreciate the convenience and community. This high-density model may shape future urban living, offering sustainability and efficient use of space.