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Centre for Digital Built Britain



The UK BIM Framework is the overarching approach to implementing BIM in the UK, using the framework for managing information provided by the ISO 19650 series. It includes: 

Up until now, BIM Level 2 has been used extensively in UK procurement and other industry documentation, and an appropriate “descriptor” for the overall concepts and principles is still required. The British Standards Institution (BSI) CDBB and the UK BIM Alliance have proposed the “UK BIM Framework” to replace the “BIM Level 2” notation.

Importantly, the UK BIM Framework helps individuals and organisations in the UK to better understand the migration from BIM Level 2 to the UK BIM framework based on international standards BS EN ISO 19650. This shift towards international standards will take time for clients to adapt their information requirement and appoint documentation to align with ISO 19650, and the framework will support their journey plans. 

As global construction projects proliferate and UK firms are invited to collaborate, the ISO will help these teams to adopt a simplified and common approach to managing information. A unified global approach will create immediate efficiencies for clients with international supply chains. 

These international standards contain all the same principles and high-level requirements as the original BIM Level 2 documents. However, specific UK content is contained within the UK National Annex. 

CDBB is supporting the Public Sector ISO Transition Working Group (PSITWG) with the aim of building on Public Sector BIM adoption to date and allowing Departments and Agencies to collectively plan a consistent transition to the new BS EN ISO 19650 standards. This transition will include the adoption of processes, provision of technologies and consistent knowledge sharing, with the aim of helping to deliver these standards.  

Following the publication of these ISO 19650 standards, we are not expecting BIM-related policy changes. However, CDBB’s Home Nation Working Group (HNWG) is working with BSI and the ISO Convenor to understand the need for any changes to their standards programmes, terminologies, BIM templates and other issues.