Berlin's housing crisis fuels Left Party surge ahead of September vote

Berlin's state election on September 20 will determine not just who leads the city, but whether a surge of frustration over housing costs can propel the socialist Left Party to power in a capital that has long resisted easy political categorization. In the latest polling, the Left Party holds a narrow lead at 21 percent, followed closely by the center-right Christian Democratic Union at 20 percent and the far-right Alternative for Germany at 18 percent. The Greens trail at 16 percent, while the Social Democrats, once the party of Berlin governance, have fallen to 12 percent. The race is so tight that predicting the outcome remains genuinely difficult—a reflection of Berlin's peculiar political geography and the intensity of the single issue driving voters to the polls.

Berlin is a city of 3.9 million people organized into distinct neighborhoods, or Kiezs, where residents often live their entire lives without crossing into adjacent districts. This fragmentation has created a starkly divided political map. The central districts lean Green or Left, while the outer rings—where most Berliners actually live—are dominated by the CDU and, in certain areas, the AfD. That geographic split makes the city notoriously difficult to campaign in, especially for a conservative party trying to hold ground against both a surging left-wing challenger and a far-right party that has no realistic path to governing. The CDU's Lukas Krieger, the party's general secretary in Berlin and a federal parliamentarian, acknowledged the difficulty. "Berlin is indeed particularly challenging," he told Deutsche Welle, insisting that the race was crystallizing into a duel between his party and the Left. He framed the choice starkly: the CDU as a guarantor of stability and the political center, versus a radical Left Party that would destabilize the city.

The CDU faces an additional complication: their incumbent mayor, Kai Wegner, is not seeking reelection after choosing to play tennis during Berlin's worst power outage since World War II—a decision that damaged his political standing. The party has hastily elevated Stefan Evers, the Finance Minister, as their new candidate. His main opponent is Elif Eralp, a lawyer born in Munich in 1980 to parents who fled Turkey's military putsch. Neither candidate is particularly well-known to voters; in one recent poll, roughly half of Berliners said they had no strong opinion about any of the leading mayoral candidates.

The Left Party's surge is driven almost entirely by a single issue: housing. According to a Berlin Trend poll, 32 percent of voters identified housing as the city's most pressing problem—far exceeding the 10 percent who cited immigration and asylum, or the 9 percent who named security and crime. Kerstin Wolter, co-leader of the Left Party, pointed to the concrete desperation behind those numbers. "The rent situation is catastrophic," she said. "People can't find an apartment, people are scared of rent increases, people are losing their apartments because the landlords are claiming them for their own use." The Left Party has made a radical promise: to implement the results of a 2021 referendum in which 59 percent of Berliners voted to expropriate real estate companies owning more than 3,000 units and transfer their property to public ownership. Successive governments, first led by the Social Democrats and then the CDU, have avoided acting on that mandate, instead establishing commissions to study the question. Wolter rejected the characterization of expropriation as populist, noting that the power to expropriate is written into Germany's Basic Law, established in 1949, though it has never been invoked.

Political scientist Julia Reuschenbach of Hamburg University argued that the Left Party has positioned itself as the most credible opposition to the far-right AfD, partly because it is the only left-of-center party unwilling to collaborate with the CDU—and the CDU has made clear it will not work with the Left either. That clarity of opposition, she suggested, appeals to voters exhausted by centrist parties that have failed to present new solutions. "They formulate maximalist positions," Reuschenbach said of the Left. "But it's straight. I'd say that for many people, the Left have more clarity, more of their own proposals." The Left Party has faced its own complications: a rapper performing at a campaign event in Neukölln chanted "Death to the IDF," drawing accusations of antisemitism. Eralp condemned the performance and promised an investigation, and the party has officially resolved to consider Israel's military action in Gaza a genocide—a position that energizes its base but has invited criticism.

The party's strength is also being amplified by demographic shifts. This is the first Berlin election where 16-year-olds can vote, and young Germans have become increasingly politicized in recent years, concerned with climate change, employment prospects, and pensions. Wolter noted that Berlin itself is becoming more economically polarized: the city is home to a growing number of millionaires alongside a rising population living in poverty. That combination of economic anxiety, a clear political offer on housing, and a generation of voters newly enfranchised and concerned about their futures has created conditions unlike any previous Berlin election. A Left Party victory would reshape the city's politics and increase pressure on Chancellor Friedrich Merz's CDU at the national level. The AfD, despite polling at 18 percent, remains politically isolated—no other party has signaled a willingness to govern with them, a constraint that limits their practical power even if they gain seats.