Can I change more bathrooms in Jiaming Garden, Qiandenggang, Kunshan, Suzhou, Jiangsu?

You can't. According to the Administrative Measures for Interior Decoration of Residential Buildings, it is strictly forbidden to change rooms or balconies without waterproof requirements into bathrooms and kitchens, let alone bathrooms. Hong Kong Jiamingyuan is located in Hong Kong Jiamingyuan, Jingjing Road. It is a residential area planned and developed by Shanghai Xiao Yuan Real Estate Development Co., Ltd.