Except you're going to have a terrible time building a new hotel complex in the middle of already existing apartments. The bill for sound insulation is going to

Except you're going to have a terrible time building a new hotel complex in the middle of already existing apartments. The bill for sound insulation is going to be massive. And if you get inspected and it turns your you are not within the regulations, the fine is going to be a fun one too. Therefore, new hotels are built somewhat isolated from existing housing, or take up an entire building. As opposed to a random person just renting his apartment and getting a tap on the wrist eventually.