The 21st China Housing and Urban Rural Development Expo, with the theme of "Good Houses, Good Lives, New Technologies, and New Momentum", will focus on the construction of good houses, green and low-carbon buildings, ultra-low energy buildings, new building industrialization and prefabricated buildings, intelligent construction, prefabricated decoration, urban renewal and building safety, livable rural housing construction and rural revitalization, improvement of housing quality, construction of affordable housing, digital homes, and smart homes