The Triangulum office building at SAP-Platz 1 in Ratingen shows how a modern office property can combine sustainable building operation with high frequency and demanding operational processes. The architectural structure, flexible workspaces and efficient technical equipment form the basis for the responsible use of energy, resources and mobility. The property has now been successfully awarded the DGNB Gold certificate in the category ‘Sustainably operated office and administration buildings’. The award recognizes not only the quality of the building itself, but also a tenant environment in which sustainability is particularly valued and ecological and social responsibility are taken seriously. With the Triangulum Gold status, four of the Brune Immobilien Gruppe’s five large office quarters have now successfully completed DGNB Gold certification. This marks an important strategic step towards long-term value creation and sustainable building operation.
20. November 2025
Next Milestone on the path to full DGNB certification
