Rosenheim's Climate Protection in April 2026: Flood Protection, Landscape Conservation, and Waste Management

Climate Change as a Driving Force for Rosenheim's City Politics

Rosenheim has increasingly addressed the challenges of climate change in recent years. This became particularly evident in April 2026 in the Committee for Environment, Energy, and Climate Protection. By investing in flood protection, adapting landscape protection areas, and making progress in waste management, the city demonstrates its pioneering role in climate policy.

Flood Protection along the Mangfall: Investments with a Climate Factor

The renovation of the Mangfall embankments is a central project aimed at protecting the city from the effects of climate change. In April 2026, details for several construction sections were presented, including:

• Construction Section 11.1 (Railway Bridge – Swimming Pool Pier): 1,220 meters of embankment will be renovated, slopes adjusted, and subsidence compensated. The embankment crest path will be asphalted. The cost amounts to around 9 million euros, with a construction period of approximately 2.5 years.
• Construction Section 11.2: Further renovations with a budget of 2.3 million euros and a construction period of 1.5 years.
• Flood Gate Area (Construction Sections 91/95): A three-field closure structure will be built, costing 3.8 million euros.

Another central project is the Retention Basin Feldolling, which will be completed in 2026. With a climate factor of 15%, the project is already proactively adapting to future rainfall levels. The total cost of the project amounts to 80 million euros, of which 70 million euros have already been invested.

These measures show how Rosenheim is addressing climate risks not only reactively but strategically. At the same time, landscape management aspects are being integrated into planning to preserve the ecological value of the Mangfall region.

Landscape Protection Area "Mangfall": Revision and Expansion

In April 2026, the Ordinance for the Revision of the Landscape Protection Area "Mangfall" was passed. The protected area now covers approximately 121 hectares, having originally been 99 hectares. The revision followed years of legal delays and was accompanied by a public procedure, during which no objections were raised.

The new ordinance protects green areas along the Mangfall and regulates restrictions on lighting, fireplaces, events, and forestry. The revision was supported by the city council faction Bündnis 90/Die Grünen, although concerns were raised about the removal of a green area near the ice stadium.

The ordinance is a milestone in balancing urban development and landscape protection. It shows how Rosenheim is acting proactively on sensitive issues such as the protection of natural resources.

Organic Waste Collection: Successes and Challenges

Since the beginning of 2025, Rosenheim has been collecting organic waste at 21 decentralized locations with a total of 27 containers. After one year in practice, around 100 tons of organic waste have already been collected, indicating a positive acceptance by the population. The experiences with separation have been largely positive, with only a few misplacements.

The city plans to add another 30 containers and expand the network to Aising, Happing, and Am Gries. However, the average amount of collected organic waste in Rosenheim, at 2 kg per inhabitant, is still significantly below the Bavarian average of 70.3 kg. This underlines that there is still room for improvement, particularly in terms of awareness and infrastructure.

Outlook: Climate-Adapted City Politics as a Future Task

April 2026 was an intense month for climate protection measures in Rosenheim. With investments in flood protection, the expansion of the landscape protection area, and progress in waste management, the city shows that it takes the challenges of climate change seriously.

The coming months will show whether the planned measures can be implemented on time and effectively. At the same time, the question remains how the city will develop climate-friendly solutions in other areas, such as transportation or energy policy. Rosenheim is moving in the right direction, but the balance between growth, security, and sustainability remains a constant challenge.