The Christian Democratic Union (CDU) emerged as the largest party with 40.4%, with the Social Democratic Party (SPD) second on 30.4%. The Party of Democratic Socialism (PDS) won 9.2%, while the Free Democratic Party (FDP) won 7.1%. Two green parties, the Alternative List from the West and the Alliance 90 from the East, entered the Abgeordnetenhaus with 5.0% and 4.4% respectively. The 5% electoral threshold for entry was applied separately in the old West and East of the city, allowing both parties to enter despite both falling short of 5% statewide. They subsequently formed a joint parliamentary group, and later merged to become the Berlin branch of Alliance 90/The Greens.
A potential CDU–FDP government came up two seats short of a majority, and no left-of-centre arrangement was possible due to the presence of PDS. Thus, the CDU and SPD entered into a grand coalition, and CDU leader and former Mayor Eberhard Diepgen was elected as the first Mayor of reunified Berlin.[1]
Parties
The table below lists the parties and groupings competing in the election which were represented in the 11th Abgeordnetenhaus of West Berlin (elected in 1989) and the last city council of East Berlin (elected in May 1990). Parties are listed in order of the number of seats they held in both city legislatures.
^In the 1990 election, the 5% electoral threshold was applied separately in East Berlin and West Berlin. The Alliance 90–Eastern Greens-UFV grouping won 11.4% of votes in East Berlin.
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