The British Standards Institution (BSI) describes BIM Level 2 maturity as a series of domain and collaborative federated models. The models, consisting of both 3D geometrical and non-graphical data, are prepared by different parties during the project life-cycle within the context of a common data environment. This requires an information exchange process which is specific to that project and co-ordinated between various systems and project participants. This provides the platform to improve the co-ordination of the design and provide validate outputs via digital transactions in a structured and reusable form.


Essentially it is a managed 3D environment with data attached, but created in separate discipline-based models. These separate models are brought together at agreed intervals to form a federated model, but do not lose their identity or integrity. Data may include construction sequencing (4D) and cost (5D) information.

BIM Level 2 maturity is illustrated in the Bew-Richards “BIM Wedge” below it should be noted that Level 2 builds upon Level 1 standards especially BS1192-2007 and its requirement for a common data environment.


Scottish Government has targeted Level 2 BIM operation on all appropriate public sector projects determined via the SFT BIM Grading Tool. This means that project participants will provide defined outputs via a BIM and that the BIM itself will be managed as a series of self-contained models using proprietary information exchanges between systems. Level 2 BIM standards have been well tested and are seen a world leading suite of documents.

British Standard Institute has produced a suite of standards to support industry in the adoption of BIM Level 2 outline the processes and information management practices required to perform at this maturity level.

The standards for Level 2 consist of:

  • BS 1192:2007 + A2:2016: Collaborative production of architectural, engineering and construction information. Code of practice
  • PAS 1192-2:2013: Specification for information management for the capital/delivery phase of construction projects using building information modelling
  • PAS 1192-3:2014: Specification for information management for the operational phase of assets using building information modelling (BIM)
  • BS 1192-4:2014: Collaborative production of information. Fulfilling employer’s information exchange requirements using COBie. Code of practice
  • PAS 1192-5:2015: Specification for security-minded building information modelling, digital built environments and smart asset management
  • BS 8536-1:2015: Briefing for design and construction. Code of practice for facilities management (Buildings infrastructure)
  • BS 8536-2:2016Briefing for design and construction, Part 2; code of practice for asset management (Linear & geographical infrastructure)BS 8536-2: 2016:

This guidance aligns fully with the British Standards and these documents can be downloaded for free from the BSI websites at the following link.


For further information in relation to the BIM level 2 standards, please also refer to the useful videos within the resource section of this website