The Equalization of Land Rights Act Article 26

In light of the actual situation of urban development, the Special Municipal Government or the County / City Government shall specify the areas wherein all private vacant lands shall be put to such designated uses as building a new house, additional construction, remodeling or reconstruction. For any such land which has not been put to the designated use after expiration of the set time limit, the government shall levy vacant land tax in addition to land value tax at the rate equivalent to two to five times the basic rate, or purchase it at its declared value.In case any land is put to such designated uses as building a new house, additional construction, remodeling or reconstruction, within the set time limit, according to the provisions of the preceding Paragraph, and the value of new improvement is less than 50 percent of the value of its site, the Special Municipal Government or the County / City Government shall not issue any construction license.