The principle of proportionality means that administrative organs should take into account the realization of administrative objectives and the choice of appropriate means to ensure the balance between public interests and the rights and interests of the counterparty. if the realization of administrative objectives may have some adverse impact on the rights and interests of the opposite party, this adverse impact should be limited to the smallest possible scope and limits, and the two should be kept in an appropriate proportion.
The act of the planning bureau requiring a company to demolish an illegally added 12th floor on a nine-story commercial building is most in line with the principle of proportionality according to the above definition.