Level 1 BIM involves using 3D models and 2D documentation. Computer drawing standards and electronic sharing through a central database are used.

In the BIM Level 1 concept phase, 3D models are used and 2D documentation is used for debugging and production. Computer drawing standards and electronic sharing through a central database are already in use.

To achieve Level 1 BIM:

• Roles and responsibilities should be agreed upon;
• Naming conventions should be adopted;
• Arrangements should be put in place to create and maintain the project specific codes and project spatial co-ordination;
• A “Common Data Environment” should be adopted, for example a a file server and then information to be shared between all members of the project team;
• A suitable information hierarchy should be agreed.

In this level, information from the 3D model can be transmitted to computing programs or disciplines.

BIM 1 level – 2D and/or 3D CAD models can be managed, common data environment is partially used.