What is the procedure for transforming a shop on the second floor into an apartment?

Procedures for changing commercial real estate into apartments: Housing Authority-Urban Management Bureau-Industrial and Commercial Bureau-Environmental Protection Bureau/Transportation Bureau, and the examination and approval procedures for the change of housing use and structure shall be handled at the Housing Authority.

The type of house generally refers to the use of residential buildings, and commercial buildings are called residential buildings because they are apartments. An apartment refers to a house or office building in a residential building.