The historical memory of a city becomes increasingly blurred with its development, making the importance of protecting cultural relics stands out. However, in current urban planning and practice, the urban purple line, namely the boundaries of historic conservation areas, has become an insurmountable gap. As result, the historical and cultural blocks and buildings within the purple line become isolated cultural islands of the city. What kind of protection is needed for historical and cultural blocks to break from the shackles of "protection" and to let culture blend into the city? Wanshi Habitat is located in the Hakka village, southwest of Pingshan Town. It is a ancient castle-style Hakka walled village and classified as Historical and Cultural Sites Protected at the Provincial Level and one of the well-preserved Hakka walled villages in Shenzhen. Facing the growing mania of real estate development around the village, matters of how to preserve the intrinsic value of relics, how to reconcile their relationships with the development of surrounding area, how to coordinate the interests of all parties, and how to shape local characteristics were discussed by leaders from Pingshan Adminstration of Urban Planning, Land & Resources Commission of Shenzhen Municipality and representatives from Pingshan community in this Cool Chat.