Elif Eralp's housing promise: where Berlin can act – and cannot
The Left is ahead in the Berlin election. Its lead candidate wants to change rental policy, but coalition arithmetic and federal law set limits.
Elif Eralp is the face of an election victory after the Berlin vote – but not yet Governing Mayor. According to the state returning officer's preliminary result, the Left won 25.7 percent of second votes, ahead of the CDU with 18.8 percent. To move into the Rotes Rathaus, the party's lead candidate now needs partners and a vote in the Abgeordnetenhaus. The real test lies in her central promise: affordable housing.
A victory, but no automatic mandate to govern
Eralp is a lawyer, has been a member of the Abgeordnetenhaus since 2021 and is deputy chair of her parliamentary group. By her own account, her parents fled Turkey in the 1980s as socialists and trade unionists. She links the fight against displacement with migrant participation and campaigns for a "Solidarity City". Her personal background explains political priorities; it does not, however, allow conclusions about a particular government policy or a future majority.
The election authority reported a preliminary second-vote result early on Monday: the Left 25.7 percent, CDU 18.8, AfD 16.3, Greens 14.3 and SPD 12.1 percent. These figures are vote shares, not an automatic finished coalition. Left, Greens and SPD together would add up arithmetically to 52.1 percent of second votes. How a workable majority in parliament comes about and what the parties agree on is a separate question. Under the Berlin constitution, the Abgeordnetenhaus elects the head of government. Leading in the vote does not mean voters hand the office directly to the winner.
The rent cap runs into a legal limit
Eralp puts rents and housing at the centre of her campaign. She calls for more municipal housing, the socialisation of large housing portfolios and a nationwide rent cap. One important distinction must not be lost here: a Senate in Berlin can exert influence through state-owned housing companies, administration, funding and enforcement. It cannot simply decide new general rent ceilings for privately financed housing on its own.
The Federal Constitutional Court declared the Berlin rent cap void in 2021. It reasoned that the federal government had regulated rent law exhaustively in this area and that the state lacked legislative competence. The ruling did not say that every form of tenant protection is prohibited. It set a competence limit for that specific state-law instrument. Eralp's demand for a nationwide cap takes that limit into account, but it would have to be pushed through in federal politics. Berlin alone cannot guarantee it.
Flats stay scarce even after a change of policy
The Berlin Housing Market Report 2025 documents the situation regarding supply, demand and rents. It is a yardstick against which later promises can be measured; an election result does not produce an additional flat. Tenants can benefit from better enforcement of existing rules or from decisions on state-owned housing stock. Such steps, however, do not automatically resolve the shortage of available housing. New construction, renovation and financing compete for money and time.
The conflicts of interest are real. Stricter rent rules can relieve households, while owners and the construction industry warn of weaker investment incentives. These objections do not prove that protective measures would be ineffective. Conversely, a lower regulated rent alone does not prove that more people will find a flat. The effect has to be assessed by instrument and by market segment. Socialising large portfolios, too, would be a legal and financial process, not a decision implemented on the morning after the election.
The comparison with New York's mayor Zohran Mamdani describes Eralp's campaign style and her focus on the cost of living, but it does not replace an analysis of Berlin law or of the coalition talks. Her election victory opens an opportunity to renegotiate housing policy. Whether it becomes a federal initiative, a Berlin administrative programme or a limited coalition agreement will be decided only after the election. For tenants, what counts in the end is less the label of a candidacy than concrete, legally viable relief.
