Berlin's Office Glut Is Turning Into Someone Else's Windfall

Berlin's commercial property market crossed a threshold this spring that landlords had been dreading and opportunists had been waiting for: prime office vacancy in the central districts hit levels not recorded since the post-reunification shakeout of the late 1990s. JLL's Germany desk put the city-wide office vacancy rate at 9.8 percent for the first quarter of 2026, up from 6.1 percent in the same period of 2024. In Mitte alone, the figure is closer to 11.5 percent. The distress is real — and so is the money now circling it.

The reasons for the glut are not hard to find. A wave of speculative office construction that broke ground between 2020 and 2022 delivered roughly 420,000 square metres of new space into a city where hybrid working had already permanently trimmed per-employee desk requirements. Technology and media tenants, long the backbone of Berlin's leasing market, shed headcount through 2024 and 2025. The result is a corridor of half-empty glass floors running from Potsdamer Platz north through the government quarter and east toward Alexanderplatz, with asking rents in secondary locations softening by as much as 18 percent year-on-year.

Who Is Already Moving

The first movers are not the cautious institutional funds. They are mid-sized private equity vehicles, conversion specialists and the operators of flexible workspace brands who can act without lengthy investment committee cycles. CPI Property Group, which already holds significant Berlin assets, has been in exclusive due diligence on a 12,000-square-metre block on Friedrichstraße since May, according to market participants familiar with the process. The asking price represents a discount of roughly 30 percent to the 2022 peak valuation. Separately, Berlin-based developer Groth Group has publicly flagged its interest in converting redundant office floors in Prenzlauer Berg into mixed residential and life-sciences space — a model that has already worked for them on a smaller project near Schönhauser Allee.

Co-working operators are just as aggressive. Design Offices, the Munich-headquartered flexible workspace group, opened its seventh Berlin location in April, taking 4,800 square metres on Kurfürstendamm at a rent understood to be well below the headline rate the previous tenant paid in 2021. WeWork's restructured German entity has likewise been circling a building on Unter den Linden that its former occupant, a legal services firm, vacated in February. The pitch from operators to distressed landlords is simple: a guaranteed income stream, even at a discount, beats empty floors burning service charges.

The Numbers Behind the Opportunity

Data from Colliers International's Berlin office shows that prime headline rents for Grade A space in the CBD have held relatively firm at around €42 per square metre per month, but effective rents — after rent-free periods and fit-out contributions are stripped in — are closer to €34 to €36. That gap is where negotiating leverage lives. Buildings that cannot credibly claim Grade A status, particularly those constructed between 2005 and 2015 with energy performance certificates below the current EPC-B threshold required under Germany's updated Gebäudeenergiegesetz, are trading at yields of 6.2 to 6.8 percent — a spread of nearly 200 basis points over the prime end of the market.

For buyers with access to equity capital rather than floating-rate debt, that spread is compelling. The BaFin-regulated open-ended real estate funds that dominated Berlin buying in 2019 and 2020 are largely sidelined by redemption pressure and loan covenant reviews. The field is clear for those who can move without leverage constraints.

The practical read for building owners still sitting on vacant floors is stark: the window for a negotiated, off-market sale at a tolerable discount will not stay open indefinitely. A second tranche of lease expiries is expected in the fourth quarter of 2026 as five-year contracts signed in the post-pandemic optimism of late 2021 roll off. Every new vacancy arrival reinforces the buyer's hand. Owners who engage now — restructuring leases, bringing in a conversion partner or striking a deal with a flexible workspace operator before Q4 supply hits — retain some leverage. Those who wait may find themselves negotiating from a considerably weaker position come January.