Published November 9, 2026
| Version v1
Report
Open
Survey Results "Open BIM in Design"
Authors/Creators
-
1.
Austrian Institute of Technology
-
2.
UCLouvain
-
3.
KTH Royal Institute of Technology
- 4. Digital Findet Stadt
-
5.
RWTH Aachen University
-
6.
University of Limerick
-
7.
Lund University
Description
IEA EBC Annex 91 “Open BIM for Energy Efficient Buildings” examines how open, standards-based BIM workflows can support the design of energy-efficient buildings. As part of this work, the Annex ran an online survey among architecture, engineering and construction (AEC) practitioners to capture how open BIM is used in everyday design practice – which tools and formats are common, how mature the underlying governance is, and where the biggest obstacles and unmet needs lie.
The survey closed with 47 completed responses from practitioners in 9 countries. Results were first presented to the Annex 91 consortium on 3 September 2026 in London and are summarized here for wider circulation.