about
c u b e is consultancy firm working on a built environment within planetary boundaries. This includes an array of activities such as integrating environmental aspects into the design process, developing resource-conscious strategies and processes, refurbishment design, tools for comparison, competitions entries and jury participation, feasibility studies, exhibitions, education and initiatives. Founded in Berlin in 2008 by Linda Hildebrand, c u b e is supporting ministries, universities, architects and engineers, industry and NGOs.
Linda Hildebrand (director), a trained architect with a PhD from TU Delft, worked as Professor for Reuse in Architecture at RWTH Aachen University from 2014 to 2025. She co-founded Concular in 2020, a platform offering services to promote reuse in the construction industry, where she continues to contribute as an external advisor. Linda is deeply engaged in professional associations. She initiated and coordinates the educator's network for Architects for Future and serves as a member of the expert group ZukunftBau at the Federal Office for Building and Regional Planning (BBSR). Additionally, she is part of the Committee for Life Cycle and Circular Building at the German Green Building Council (DGNB). In the Initiative Housing 2050 (IW2050), she leads the group on circularity alongside Joost Hartwig (ina mbH) and Timo Ernst (sustainable AG). Furthermore, in 2022, she co-founded CircuClarity with Lisa Rammig, an initiative dedicated to advancing climate neutrality and circularity within the glass industry.
Elisa Berker (researcher) is an architect focusing on circular construction and earthen building. With degrees from TU Dortmund and the University of Arts Linz, she works with c-u-b-e on developing ERUB, a decision-support tool for take-back systems in the construction industry. Alongside her research, she shares expertise as a certified earth building specialist through workshops, consulting, and craft with CLAYA.
Kim Ha Tran (project collaborator) graduated in Architecture at RWTH Aachen University in 2021. She worked in architecture offices in Germany and Beijing while teaching and researching at the chair of Reuse in Architecture at RWTH Aachen University from 2021 to 2024. During that time she was part of the founding team for the university educators network „Gemeinsam für die Bauwende“. She contributed to various research projects such as ReNeReB, a Regional Resource Efficient Building Network, and the ZukunftBau- funded project Material Recovery Rights. In her research she specialized in regulatory instruments for circularity in the built environment, building material passports, and residual values within building materials.
Elias Kufeld (project collaborator) graduated in Architecture at RWTH Aachen University in 2024. After finishing his Bachelor (2021) he worked in an architectural office in Switzerland before he continued his Master in Aachen and Madrid, while working as a research Assistant at the Chair for Reuse in Aachen from 2022-2024. Currently he fills a part time position as Research Associate at the Design Computation Chair at RWTH Aachen, contributing to the further development of a LCA Tool with open BIM Standards. As part of the Backoffice of Architcts4Future he is advising project groups as well as processing external inquiries. In his research he specialized in Life Cycle Assessment, building material passports, and the Re-Use of building components.
