I created a stair-like wide open space inside the box-like building. Each level has inside balcony which was used as coffee shop or common leisure green space. Residents could enjoy their private space inside the building with natural sunlight. All unit was placed  on edge of rectangle with corridor on the two corner, so each unit has window with natural light. The                                                                          lower level is restaurant and retail stores, while top two level is the private gym and                                                                      swimming pool  for resident.