Key takeaways
- On the commercial side, the picture is fundamentally different: approved building volume for non-residential structures fell 5.2 percent in 2025 to 183.1 million cubic metres, the lowest reading since 2014.
- The decline to 183.1 million cubic metres is notable precisely because it does not coincide with absent demand, but with selective and real demand.
- German office take-up fell 8 percent in 2025 to roughly 4.1 million square metres, and vacancy rose to 6.3 percent nationally and to an average 8.4 percent across the A-cities (Architekturblatt).
- The German investment market closed the first half of 2026 at roughly EUR 16.6 billion, around 5 percent above the prior-year period, with yield increases recorded in individual segments (CBRE).
Germany's construction cycle is currently running at two distinct speeds, and the gap between them matters more to commercial real estate investors than any yield debate this summer. On the residential side, permit momentum has clearly turned: between January and May 2026, 104,700 dwellings were approved nationwide, up 15.4 percent year on year (Federal Statistical Office). May alone came in 24.7 percent above the prior-year month. On the commercial side, the picture is fundamentally different: approved building volume for non-residential structures fell 5.2 percent in 2025 to 183.1 million cubic metres, the lowest reading since 2014.
This divergence is not statistical noise. It defines the space that will reach the market between 2028 and 2030, and it explains why owners of high-quality standing assets hold a materially stronger negotiating position than the subdued macro sentiment would suggest.
Why permits are the most honest leading indicator
Permit data has a decisive advantage over leasing and investment statistics: it is hard to manipulate and it leads actual completion with a comparatively stable lag. For office, logistics and production buildings, 24 to 42 months typically separate approval from handover depending on complexity. What was not approved in 2025 cannot be leased in 2028, regardless of how rates, construction costs or demand develop in the meantime.
The decline to 183.1 million cubic metres is notable precisely because it does not coincide with absent demand, but with selective and real demand. German office take-up fell 8 percent in 2025 to roughly 4.1 million square metres, and vacancy rose to 6.3 percent nationally and to an average 8.4 percent across the A-cities (Architekturblatt). But that vacancy is largely structural — concentrated in assets that are neither ESG-compliant nor competitive from an occupier's perspective. The simultaneous rise in prime rents demonstrates that an entirely different scarcity governs the upper quality segment.
For supply projection, the implication is clear: headline vacancy materially overstates the availability of lettable prime space. Anyone seeking ESG-compliant new-build space in a core submarket in 2028 will meet a pipeline that was never filled in 2025 and 2026.
The causes are not primarily about interest rates
It would be convenient to attribute the collapse in commercial construction solely to the financing environment. The data supports that only partially. Residential permits are recovering — vigorously — in exactly the same rate environment. Three other factors explain the difference.
First, revenue-side certainty. A residential project can be underwritten within relatively narrow rent bands because demand is structurally underpinned. A speculative office building must assume a rent level that depends on occupier space-efficiency decisions the occupiers themselves have not yet made. Lower rates do not remove that uncertainty.
Second, regulatory load. Non-residential buildings face direct pressure from tightening minimum efficiency standards and from the taxonomy requirements of institutional capital providers. The resulting cost burden lands on new development at a point where construction prices remain elevated.
Third — and this is underestimated — lender pre-letting discipline. Banks and debt funds now routinely require pre-let ratios on commercial developments that would have been considered ambitious before 2022. No anchor tenant, no loan; no loan, no permit application. The permit decline is therefore partly a downstream effect of credit standards rather than credit costs.
One detail at the margin deserves attention: between January and May 2026, 1,700 dwellings were approved within new non-residential buildings, up 26.8 percent. Mixed use is growing precisely where monofunctional commercial construction stagnates — a signal about where developer competence is migrating.
What the supply gap means for valuations
The consequence for valuation practice is not trivial. If the 2028–2030 pipeline is structurally thin, the rental growth assumption in the discounted cash flow shifts — asymmetrically by quality segment.
For prime assets in established submarkets, the supply side argues for real positive rental growth across the entire forecast horizon. The cautious growth assumptions still applied by many valuers are likely to prove conservative. For secondary assets the opposite holds: they do not benefit from the supply gap, because their competition is not new development but refurbished stock, and that stock continues to grow through repositioning projects.
This spread is already visible in yields. The German investment market closed the first half of 2026 at roughly EUR 16.6 billion, around 5 percent above the prior-year period, with yield increases recorded in individual segments (CBRE). JLL puts half-year volume at roughly EUR 17.6 billion, some 15 percent above last year, and forecasts EUR 35 to 40 billion for the full year (JLL). Rising volume alongside softening yields in sub-segments is not a contradiction — it is the signature of a market pricing quality and non-quality on entirely separate curves.
Strategic options for the next eighteen months
Three concrete paths follow from the supply projection.
The first concerns owners with prime-segment lease expiries. Where 2027 and 2028 carry expiry concentrations, renewal negotiations should not be pulled forward but deliberately allowed to run into the scarce-supply phase. The negotiating position improves with every quarter the permit statistics stay weak.
The second concerns developers holding secured planning consent. Consent in hand today that leads to a 2028/2029 completion carries an option value that most balance sheets do not reflect. The market is not yet pricing land with robust planning consent as the scarce good it will be in three years.
The third concerns manage-to-core strategies. When new construction becomes structurally scarce, the relative attractiveness of refurbishment shifts. An asset that can be lifted to prime standard with defensible capex will compete in 2029 against a far thinner new-build field than current underwriting models assume.
The central caveat: this thesis holds only as long as permit weakness persists. Should commercial permit statistics recover strongly in 2027 — for instance if falling financing costs and stabilised construction prices coincide — the gap merely shifts out by two years rather than disappearing. The next four quarters of permit data are therefore not a peripheral indicator but the core monitoring instrument for any supply thesis.
What this means for principals: the weakest non-residential permit statistics since 2014 are not a crisis headline for standing-asset owners but the foundation of a defensible scarcity thesis from 2028 onward. Those holding prime quality today should steer lease terms deliberately into that window; those holding planning consent hold an underpriced option; and those underwriting manage-to-core can assume less new-build competition than conservative models allow. Permit statistics belong in monthly reporting from now on.