If you want to apply for permanent residence in Denmark, you should be aware of some specific rules that might apply for your situation. It can depend on your country of origin, age, work status, connections to Denmark, etc. Before you apply, you should read the requirements to avoid any misunderstandings or other issues.
New to Denmark has gathered all the information there is to know when appyling for a permanent residence. Read more here.
If you have any doubt or would like additional information, you can contact the Danish Immigration Service.