The EU and its Member States share the competence in the area of immigration. There are certain common immigration rules valid across the EU, while other aspects are determined by each EU country. This means that immigration rules are not identical in different EU countries and national authorities are best placed to reply to your detailed questions. Residence permit applications must always be made to the authorities of the EU country you plan to move to. There is no European institution handling applications or issuing residence permits on behalf of individual countries.