Deutsche Gesellschaft für Nachhaltiges Bauen (DGNB)

Deutsche Gesellschaft für Nachhaltiges Bauen (DGNB)
Name	Deutsche Gesellschaft für Nachhaltiges Bauen (DGNB)
Type	Non-profit association
Founded	2007
Headquarters	Stuttgart, Germany
Area served	International
Focus	Sustainable building, green building certification

Deutsche Gesellschaft für Nachhaltiges Bauen (DGNB) is a German non-profit association that develops and operates a building certification system and promotes sustainable construction practices across Europe and beyond. It provides standards, tools, and education for professionals in architecture, engineering, real estate, and urban planning, interacting with institutions such as the European Union, Bundesrepublik Deutschland, and industry stakeholders like Deutsche Bahn, Siemens, and BASF. The organization engages with academic and professional bodies including Technische Universität München, RWTH Aachen University, Fraunhofer Society, and International WELL Building Institute.

History

The association was established in 2007 with founding partners from entities such as Federal Ministry of Transport, Building and Urban Development (Germany), KfW Bankengruppe, and municipal bodies including the City of Stuttgart and the State of Baden-Württemberg. Early cooperation involved research institutions like Fraunhofer Institute for Building Physics and universities including Karlsruhe Institute of Technology and Technische Universität Darmstadt. Throughout the 2010s it expanded certification schemes in parallel to frameworks such as LEED (certification), BREEAM, and standards from International Organization for Standardization and European Committee for Standardization. High-profile projects certified under the system included developments by Hochtief, IG Metall, and corporate campuses for Bayer and Volkswagen Group. The DGNB updated its system in successive editions to align with directives from the European Green Deal and initiatives by the United Nations Environment Programme.

Organization and Governance

The association is governed by an executive board and a supervisory council with representatives from professional associations such as Bund Deutscher Architektinnen und Architekten, Zentralverband Deutsches Baugewerbe, and industry partners like Drees & Sommer and Bilfinger. Advisory bodies include academic working groups from Technische Universität Berlin and international liaison with organizations such as World Green Building Council and International WELL Building Institute. Funding streams combine membership fees from corporations like Daimler AG and consultancies, contract income for certification services, and project grants from institutions including the European Commission and German Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection.

DGNB Certification System

The association operates a tiered certification system for building projects, neighborhoods, and existing building stock comparable to LEED (certification) and BREEAM. The scheme offers levels such as bronze, silver, and gold and includes category-specific protocols for offices, residential, industrial, and cultural buildings used by developers including Allianz Real Estate and Union Investment. The system integrates lifecycle assessment methodologies from bodies like ISO 14040 and aligns with standards from DIN Deutsches Institut für Normung and European norms promulgated by CEN. Certification processes involve licensed auditors and consultants accredited through partnerships with institutions such as IHK and Chamber of Architects.

Standards and Criteria

Criteria encompass environmental quality, economic performance, sociocultural and functional quality, technical quality, process quality, and site quality, referencing scientific work from Fraunhofer Institute for Building Physics and lifecycle assessment research at ETH Zurich. The system incorporates climate targets consistent with the Paris Agreement and uses metrics aligned with ISO 52000 series and regional energy regulations like the Energieeinsparverordnung and Energiegesetz variants. Benchmarks draw on data from Statistisches Bundesamt (Germany) and industry databases maintained by partners such as Bundesinstitut für Bau-, Stadt- und Raumforschung and research projects with RWTH Aachen University and TU Delft.

National and International Activities

Domestically, the association collaborates with federal states such as Baden-Württemberg and municipalities like Hamburg and Munich on pilot projects, urban development plans, and public procurement guidelines used by transport agencies including Deutsche Bahn and public housing authorities. Internationally it has established certification offices and partnerships with national councils such as Swiss Sustainable Building Council, Österreichische Gesellschaft für Nachhaltiges Bauen, China Green Building Council, and municipal programs in Singapore and Dubai. The association participates in international fora alongside World Green Building Council, UN-Habitat, and the Global Alliance for Buildings and Construction.

Research, Education, and Training

The association runs professional training, continuing education, and accreditation programs in cooperation with universities such as University of Stuttgart, Technical University of Munich, and Ghent University, and research institutes including Austrian Institute of Technology and CENTRO Sviluppo Materiali. It funds and publishes applied research projects with partners like Fraunhofer Gesellschaft and contributes to doctoral and postdoctoral studies at institutions including ETH Zurich and KTH Royal Institute of Technology. Training modules and certification examiner courses are delivered jointly with trade organizations like Handwerkskammer and corporate partners such as Hochtief and Drees & Sommer.

Criticism and Controversies

Critiques have come from environmental NGOs such as Deutsche Umwelthilfe and think tanks like Wuppertal Institut and Öko-Institut regarding lifecycle emissions accounting, material selection, and weighting of criteria compared with frameworks like LEED (certification) and BREEAM. Academic commentators from TU Berlin and ETH Zurich have debated the methodological transparency of certain indicators and the balance between operational energy and embodied carbon relative to European Climate Law targets. Some industry stakeholders including smaller architectural firms represented by Bund Deutscher Architektinnen und Architekten have contested certification costs and administrative complexity, prompting dialogue with policymakers at Bundestag committees and regulatory agencies such as Umweltbundesamt.

Category:Sustainability organizations