Why can the house enter the hotel?

It may be because the house has changed the nature of the house to non-housing. The actual residence is residential land, which can only be used for residence, not for business. Business hotels can only be established in commercial housing. In order to operate a hotel, a residential building must first apply to the local planning bureau and the housing authority to change the nature of the house to non-housing, and must also obtain the consent of other owners. On the one hand, the regulatory authorities will not reply easily, on the other hand, other owners will not agree. So it is difficult to change the nature of the house.