Located on the sixth floor of the Konrad-Adenauer-House, overlooking Berlin, are the offices of the Party Leader, Angela Merkel and her members of staff.  On the same floor, in the Office of Foreign Relations (BAB), the so-called 'diplomats' of the Konrad-Adenauer-House maintain international contacts with parties, foundations, embassies and other institutions. The Chief Secretary of the Treasury and the Auditor of the Finances (neither are subject to directives) also reside on the top floor of the Konrad-Adenauer-House. Next to them the legal advisers of the General manager of the federal party has his office.

On the fifth floor, the Secretary General and his employees assist Angela Merkel in the leadership of the party. Located on the same floor is the office of the General manager of the federal party, whose job it is to coordinate the activities of the federal party headquarters with the state, regional, local, and city associations.  In addition to that, the General manager of the federal party guarantees smooth co-operation between the five departments in the party headquarters.  The press office is also located on the fifth floor, whose daily tasks include the publication of press releases and the preparation for press conferences. It also ensures regular contact between CDU politicians and the media.

On the fourth floor, the Department of Political Programmes and Analysis (PA) examines developments in different fields of politics (economic, foreign and domestic politics etc.). Specialists in each field provide the party leadership with scientific evidence for the political directives. The department is responsible for the entire political programme of the CDU and for the submission of proposals at party conventions.  Additionally, it administers and manages the specialized federal committees, specialized commissions, and other groups of the party, while maintaining contact with the workers' organizations of the CDU/CSU Bundestag Parliamentary Group.

Together, the Marketing and Internal Communication Department (MK), the Internal Management Department (MI) and the Financial Representative share the third floor.  The department of Marketing and Internal Communication, the internal 'advertising agency' of the CDU headquarters, is responsible for public relations as well as election campaigns for the Bundestag and European Parliament. The regular news services such as the "Union in Deutschland" (UiD= Union in Germany) for members of parliament and elected municipal officers and the "Union Magazine" for members of the CDU are also composed here. The editors of the internet editorial staff look after the extensive public and internal internet services of the CDU.  The provision of background information on our policies as well as the most recent news ensures that CDU members and interested citizens have access to the party and its programme at all times.

The Department of Internal Management is the inner service centre of the Konrad-Adenauer-House.  The Administration attends to the management (which includes central purchases, administration of materials and the postal service centre) of the federal party headquarters.  The 'Budget/Finance' team is dedicated to the creation and observation of the budget for the federal party headquarters as well as the regular accounting responsibilities of financial planning.  The Human Resources management is in charge of the recruitment of staff. The 'Law' team works on all legal questions of statute law, labour law, contractual law, insurance law, etc.   The 'Member Recruitment' team intensively courts new members. It is also responsible for the administration of the member files (ZMD) and the update and analysis of member statistics.

The Financial Representative deals with legal issues surrounding the organisation of the party's finances, namely the booking and certification of donations, the finance and budget control of the federal party as well as the creation of the legal accounting report.

On the second floor, the 'Strategic Planning' department reports directly to the party leadership. They develop political strategies as well as modern ways of campaigning for elections. With their analysis, based on the monitoring of the opposition as well as general societal developments and opinion polls, this department informs and supports the party leadership.  Speeches and other texts for the Party Leader and the Secretary General are also prepared here. Finally, the department for 'Strategic Planning' is responsible for the media politics of the CDU.

The first floor is the domain of the event professionals.  The staff of the Department of Event Management and Logistics (EL) is entrusted with the timely preparation and execution of different types of events, particularly large events, party conventions, congresses and election campaign appearances.  The employees of this department offer various services that support the city, district, and state associations of the party. 

Further, there are five societies in the building: the Union of Women (FU), the Union of Pensioners (SU), the East-and Middle German Union (OMV), the Union of Communal Politics and the Protestant Committee (EAK).