Architects and engineers have become more concerned about the environmental consequences of their design solutions. Knowledge about Life Cycle Assessment (LCA) is crucial for the necessary building sector decarbonisation, as well as for mitigating other negative environmental impacts. In Germany, designers’ attitudes towards LCA have not been analysed since 2005. However, since then, certain developments – such as the establishment of the sustainability assessment systems BNB and DGNB – have taken place. In 2019, as part of the project IEA EBC Annex 72, a survey was conducted amongst designers in Germany. The paper presents the current status to identify the progress being made since 2005 and provides recommendations to overcome barriers to LCA dissemination. The results show that although German designers are currently doing a lot with regard to environmental performance assessment, the most critical aspects are considered in a more qualitative way, except for the mandatory operational energy performance calculations. LCA-know-how and application still lags behind expectation. To support an increased use of LCA during building design, not only the provision of related data and design/assessment tools is necessary, but also the establishment of standards and regulations. The latter will drive the also necessary client demand.

建筑师和工程师更加关注其设计解决方案对环境的影响。有关生命周期评估（LCA）的知识对于必要的建筑部门脱碳以及减轻其他负面环境影响至关重要。在德国，自2005年以来就没有分析过设计师对LCA的态度。但是，自那时以来，已经取得了某些进展，例如建立了可持续发展评估系统BNB和DGNB。2019年，作为IEA EBC附件72项目的一部分，在德国的设计师中进行了一项调查。该文件介绍了自2005年以来取得的进展情况，并提出了克服LCA传播障碍的建议。结果表明，尽管德国设计师目前在环境绩效评估方面做了大量工作，但除了强制性的运营能源绩效计算之外，最关键的方面也以更具定性的方式进行考虑。LCA的专有技术和应用仍然落后于预期。为了支持在建筑设计中增加使用LCA，不仅需要提供相关数据和设计/评估工具，而且还需要建立标准和法规。后者将推动同样必要的客户需求。为了支持在建筑设计中增加使用LCA，不仅需要提供相关数据和设计/评估工具，而且还需要建立标准和法规。后者将推动同样必要的客户需求。为了支持在建筑设计中增加使用LCA，不仅需要提供相关数据和设计/评估工具，而且还需要建立标准和法规。后者将推动同样必要的客户需求。