The Lost World Castle is 'a building formed from magma rock. The shape ofthis
building resembles an ancient fortress. This building stands on a private land of
1.3 hectares and has been open since January 2017. Distance ofcastle location to
the top ofMount Merapi about 6 kilometers. Sleman district goverment requested
that the construction be stopped because it violates Sleman district regulation
number 2 year 2015 about the change ofregiobal regulation num..ber 5 year 2011
about building building and violating the regulation odpresidency ofrepublic of
Indonesia number 70 year 2014 about spatial plan ofMerapi mourztain national
park area and not equipped permission. From the normative research conducted
found that today The Lost World Castle is still open for tourists even without
permission. It becomes problematic especially for local goverment in taking
action to solve problematic law experienced by related parties. There is no clarity
on whether the goverment will close or let The Lost World Castle remain openfor
tourists. For it needs assertiveness from the local goverment, whether to make
firm action in the form of closure or tolerate by giving permission based on
existing prcedures.