Linked Building Data (LBD)

Do you work in a business that is part of the building / construction life cycle?
Do you use the Building Information Modeling (BIM) process to produce BIM deliverables?
Do you think that the data creation and management process are lacking, overly complex, or both?
Would you like to receive data that you can easily consume, use, and handoff to the next phase?

If yes to any or all of the questions, it would be great to hear from you.

We are the Building Data on the Web group - a combination of academic and industry partners who are working together to specifically address the challenge of managing the huge amount of data that is generated across the building life cycle.

BIM is, of course, not new and has played a key role in the building lifecycle for over 20 years. Our mission, through the use of the semantic web, is to establish a new Linked Open Data based BIM cloud. Our goal is to enable free and semantically interoperable resources from multiple sources - geometric models, material models, product models, simulation models, weather models, geographic models, energy tariffs, etc. - to be interlinked. We want to optimise the process of integrating existing business solutions and enable the development of new and novel solutions to meet growing demands for energy efficiency well into the 21st century.

If this sounds of interest to you, please join our group today via https://www.w3.org/community/lbd/participants!

See our presentation of LBD at TPAC 2018.

Group scope

This community group works according to a specific scope, which is communicated through the charter (see below). A number of things is hereby not included. Most predominantly, geometry is not in direct scope, even though this is highly relevant to this community. Discussions and documents around that topic are maintained in geometry.html. Other documents that have been part of this group in the past, but are not in direct current scope, are maintained in our archival page: archive.html.

Community Group Documents

Documents of the W3C Linked Building Data Community Group (working drafts).

Domain Ontology Groups Working Docs

Ontology Alignment Group

  • Working Group document
  • Participants

    In order to join, you have to register at https://www.w3.org/community/lbd/participants/. For those people who are in the process of joining but already wish to take part in the meetings, we maintain a separate list. One can be on this list for maximum two months, as this is enough time to be able to join through the regular procedure.


    The group is chaired by Pieter Pauwels, Maxime Lefrancois and Kris McGlinn. Questions go to them.