Europe heat wave sparks stranded asset worries for real‑estate investors

Europe is experiencing an unprecedented heat wave in June 2026, with temperatures reaching 35 °C or higher and many workplaces lacking air‑conditioning. The extreme heat has forced some offices to shift to remote work and highlighted the continent’s limited cooling infrastructure.

Research from Allianz estimates that the heat could cause a 5‑7 % loss in Europe’s GDP by 2030, amounting to roughly USD 638 billion in lost output. A survey of European pension‑fund managers revealed that more than half hold commercial real‑estate portfolios with poor energy performance, leading to stranded assets whose values have fallen 20‑40 % over the past three years. Over the next five years, a majority expect the number of stranded assets to rise.

To address the problem, 69 % of surveyed asset managers across the UK, Germany, France, the Netherlands, Spain and Italy plan to increase spending on technology that improves building energy efficiency. Respondents cite faster results, lower cost, reduced disruption and easier tenant buy‑in as key advantages of technology over traditional retrofitting.