The Vier Jahreszeiten is a 4-Star Superior hotel in Iserlohn, on the northern edge of the Sauerland in central-western Germany. Nestled in the forest just steps from Lake Seilersee, it offers stays and experiences immersed in nature and tranquility. A recent expansion complements the historic “Haus am See” with the new “Haus am Wald” building: five floors and 77 rooms and suites designed to engage in dialogue with the surrounding landscape, seamlessly connecting indoor and outdoor. For the common areas and new rooms, Iris Ceramica surfaces were selected for their sustainability, hygiene, safety, and aesthetic value. A material–chromatic palette inspired by woodland and stone tones shapes warm, relaxing interiors aligned with the hotel’s identity and wellness vocation. A defining element is the use of Active Surfaces®, eco-active surfaces from Iris Ceramica Group which, thanks to photocatalysis with titanium dioxide and silver ions, deliver antibacterial and antiviral, anti-pollution, anti-odour, and self-cleaning properties. Certified to ISO standards and protected by European patents, they maintain their performance throughout the entire life cycle. Activated by light (natural or artificial) and ambient humidity, they help reduce bacteria, viruses, fungi, and mould, counter airborne pollutants, and simplify day-to-day maintenance, improving overall indoor healthiness. Outdoors, anti-slip, high-thickness surfaces ensure safety on balconies and terraces; indoors, floors and wall coverings provide visual continuity, wear resistance, and easy sanitisation. The choice of low-emission, recyclable materials with recycled content underscores a commitment to environmental sustainability. In terms of aesthetics, performance, and responsibility, Iris Ceramica materials and Active Surfaces® perfectly express the spirit of the Vier Jahreszeiten—a welcoming, contemporary property where design and nature meet in harmonious balance.
