1. Different responsibilities: The full name of Housing and Urban-Rural Development Bureau is Housing and Urban-Rural Development Bureau, which is mainly responsible for urban planning, construction, management and real estate market supervision. It covers many fields such as urban infrastructure construction, housing construction engineering, municipal engineering, urban planning preparation and implementation. Housing Authority is mainly responsible for the management and supervision of the real estate market, including housing registration, property rights management, housing transactions, real estate evaluation and so on.

2. Different functions: The functions of the Housing and Construction Bureau focus more on urban construction and planning, including the construction and management of urban roads, bridges, water supply and drainage, power supply and other infrastructure. It is also responsible for the quality supervision and safety supervision of construction projects and the preparation and implementation of urban planning. The functions of the Housing Authority are more focused on the supervision and management of the real estate market, including the registration and management of housing sales, leasing, mortgage and other trading activities, as well as real estate evaluation, mapping and so on.