What is BIM?

BIM is often associated with 3D models, but it is much more than that. A BIM model combines the visual representation of a building with structured information.

This information can include:

• Materials and building components
• Quantities and costs
• Construction phases
• Energy performance
• Operation, maintenance, and future adaptation

All this information is stored in a shared digital model that can be used throughout the entire life cycle of a building.

BIM is not just a software tool; it is a collaborative process. Architects, engineers, contractors, clients, and public authorities can all work with the same digital information.

This shared approach helps to:

• Improve coordination between stakeholders
• Reduce errors and misunderstandings
• Support better decision-making in early design stages
• Increase transparency in planning and procurement

As a result, BIM has become an important part of many public and private construction projects across Europe.

To move towards a more circular construction sector, better information is needed, especially over the long term. Knowing what materials are used, where they are located, and how they can be reused is essential.

BIM provides the digital foundation to store and manage this information. When used in a structured and consistent way, BIM can support:

• Life-cycle thinking
• Resource efficiency
• Reuse and adaptability of buildings

CircleBIM builds on the existing use of BIM and extends it to support circular public planning and procurement.

By developing practical guidance, shared structures, and good practices, CircleBIM helps public authorities and project partners use BIM not only to deliver projects, but to enable long-term value, sustainability, and circular use of resources.

To translate the principles of BIM and circular construction into practice, CircleBIM has developed the CircleBIM Framework. It provides a life-cycle–based structure that helps public authorities and project partners integrate circular objectives into planning and procurement using BIM as a digital backbone.