In 1990, the theory of Europeanization was developed, which problematizes the effects of European integration on member states, non-state and sub-national actors and countries that are not members of the European Union, and in Croatia the phase of Europeanization began in 2001. Agencyization, changes aimed at depoliticization and professionalization, and strengthening the openness and ethics of administration should be mentioned as key Europeanization reforms. The European Administrative Area represents a set of administrative principles and standards for the organization and functioning of the public service and the provision of public services to citizens by EU bodies. In addition to legal principles that include the rule of law, openness and transparency, responsibility, effectiveness and efficiency, subsidiarity and proportionality, administrative principles will be analyzed in relation to public officials, public services and the quality of regulations and procedure, while standards are developed by the European Union, the Council of Europe and European countries. Transparency, as one of the fundamental principles of the European administrative space, refers to the availability and free access of citizens to information held by administrative organizations, i.e. public authorities. In addition to the organization and scope of the City and the financing of the local self-government unit, examples of good practice of the City of Varaždin in the implementation of transparency will be explained in detail in the paper.