The building industry is responsible for the highest resource use, amount of waste and emissions of all industries. The principles of the Circular Economy (CE) could offer an approach to create a more sustainable built environment. For a transition towards a circular built environment, a comprehensive assessment method is needed to support the development of circular building products. As a step towards such a method, we developed an economic assessment in the form of a Circular Economy Life Cycle Cost (CE-LCC) model. It is based on existing Life Cycle Cost techniques and adapted to meet the requirements of CE products. The model is developed to (1) consider products as a composite of components and parts with different and multiple use cycles, (2) include processes that take place after the end of use, (3) provide practical and usable information to all stakeholders, and (4) facilitate alignment of the functional unit and system boundaries with LCA. To test the model, it has been applied to the case of the Circular Kitchen (CIK). Three variants of the CIK were compared to each other and the ‘business-as-usual’ case to determine which variant is the most economically competitive on the long term. The model indicates that the most flexible variant of the CIK has the lowest LCC outcome, even when considering multiple interest, lifespan and remanufacturing and recycling scenarios. Although, the model could benefit from further research and application, it can support the transition towards a more sustainable (building) industry.

建筑行业负责所有行业的最高资源使用，浪费和排放量。循环经济（CE）的原则可以提供一种创建更可持续的建筑环境的方法。为了向圆形建筑环境过渡，需要一种综合评估方法来支持圆形建筑产品的开发。作为采用这种方法的一步，我们以循环经济生命周期成本（CE-LCC）模型的形式开发了经济评估。它基于现有的生命周期成本技术，并经过调整以满足CE产品的要求。该模型的开发目的是（1）将产品视为具有不同和多个使用周期的零部件的组合，（2）包括在使用结束后发生的过程，（3）向所有利益相关者提供实用和可用的信息，并且（4）促进功能单元和系统边界与LCA保持一致。为了测试该模型，已将其应用于“圆形厨房”（CIK）的情况。将CIK的三个变体相互比较，并按“照常营业”的案例进行比较，以确定哪种变体从长远来看最具经济竞争力。该模型表明，即使考虑多种利益，寿命以及再制造和回收方案，CIK的最灵活的变体形式的LCC结果也最低。尽管该模型可以从进一步的研究和应用中受益，但可以支持向更可持续（建筑）行业的过渡。它已应用于循环厨房（CIK）的情况。将CIK的三个变体相互比较，并按“照常营业”的案例进行比较，以确定哪种变体从长远来看最具经济竞争力。该模型表明，即使考虑多种利益，寿命以及再制造和回收方案，CIK的最灵活的变体形式的LCC结果也最低。尽管该模型可以从进一步的研究和应用中受益，但可以支持向更可持续（建筑）行业的过渡。它已应用于循环厨房（CIK）的情况。将CIK的三个变体相互比较，并按“照常营业”的案例进行比较，以确定哪种变体从长远来看最具经济竞争力。该模型表明，即使考虑多种利益，寿命以及再制造和回收方案，CIK的最灵活的变体形式的LCC结果也最低。尽管该模型可以从进一步的研究和应用中受益，但可以支持向更可持续（建筑）行业的过渡。该模型表明，即使考虑多种利益，寿命以及再制造和回收方案，CIK的最灵活的变体形式的LCC结果也最低。尽管该模型可以从进一步的研究和应用中受益，但可以支持向更可持续（建筑）行业的过渡。该模型表明，即使考虑多种利益，寿命以及再制造和回收方案，CIK的最灵活的变体形式的LCC结果也最低。尽管该模型可以从进一步的研究和应用中受益，但可以支持向更可持续（建筑）行业的过渡。