AEC (UK) Layer Protocols v4 underway

28 March 2013

Following hot on the heels of the publication of the AEC (UK) BIM Protocol For GRAPHISOFT ArchiCAD v1.0, the AEC (UK) committee is now beginning work on an update to the Layer Standards. Now known as the AEC (UK) Layer Protocols, it brings the classifications up-to-date for the recently released Uniclass v2.

AEC (UK) BIM Protocols for GRAPHISOFT ArchiCAD published

28 March 2013

Today sees the release of version 1 of the AEC (UK) BIM Protocols for GRAPHISOFT ArchiCAD. The document and its supplementary checklists can be downloaded free of charge from

AEC (UK) chair, Nigel Davies, commented, “The ArchiCAD committee has done a great job with this first release, and we thank Rob Jackson and the rest of the team for their hard work compiling the protocols. It’s an important step in the profile of the AEC (UK) work, demonstrating that BIM is not based on one piece of software alone; it’s important people are able to choose the right tool for the right job, yet be assured that there is a consistent approach to sharing models and data between the tools of their trade. The AEC (UK) Protocols go a long way to providing that consistent, best practice working.”




AEC (UK) BIM Protocols v2.0 now available

7 September 2012

The latest version of the AEC (UK) BIM Protocols is now available for download from the Documents page.

Version 2.0 of the AEC (UK) BIM Protocol is a unification of the guidance provided by the previous documents, bringing workflows together in a single generic document which can be applied to any BIM-enabled project. The set of documents builds on the guidelines and frameworks defined by the UK standards documents, including BS1192:2007 and the forthcoming PAS1192-2:2012 alongside proven best practice procedures, providing a clear, concise path to implementation for BIM authoring software, such as Autodesk Revit and Bentley’s AECOsim Building Designer.

The AEC (UK) BIM Protocol v2.0 forms the “hub” of a complete software-based solution. Supplementary documents provide additional detail and enhancements required to implement these protocols using specific BIM authoring software:

A diagram showing the relationship of the supplements to the main document. The blue shapes represent the complete package for a company using Revit.

Nigel Davies, chair of the AEC (UK) initiative, comments, “The UK construction industry is moving through an exciting period of rapid change. The Government’s BIM strategy is affecting all of us, the private sector as well as public. We see this release of the AEC (UK) BIM Protocol as critical in helping cut through the often very technical wording of the Government’s BIM Task Group documents and British Standard procedures, allowing companies of any size to work in a coordinated and consistent manner with BIM.”


19 June 2012

Work is now under way on version 2.0 of the AEC (UK) BIM Protocols. An exact timeline will be published soon, but the committee is now reviewing change requests we have received. As an insight, the new version will:

  • Amalgamate and rationalise the protocols from the Revit and Bentley Building versions
  • Redevelop the generic document to apply to all BIM authoring tools
  • Provide product-specific appendices to implement the protocols for specific software
  • Include closer alignment with BS1192:2007 and other British Standards (BS8541-1 and PAS1192-2)
  • Integrate the protocols with the project process through a Project Execution Plan

Please let us have any comments or questions you may have by posting a response to this post. We may not publish all of them, but we will read, and take on board, all comments you send.


30 September 2011

Today sees the launch of the latest document in the AEC (UK) portfolio: the AEC (UK) BIM Standard for Bentley Building products. The standard is released to compliment the previous Autodesk Revit document, ensuring that consistent methods and approaches are available for the most common BIM authoring platforms. This Standard focuses primarily on adaptation of those standards for practical and efficient application of Bentley Architecture, Bentley Structural Modeller and Bentley Electrical and Mechanical Systems, drawing on best practice and proven workflows.

The AEC (UK) BIM Standards draw on guidelines from BS1192:2007 and other world-wide sources of BIM production methods. They do not replace, but instead to provide a practical implementation to any company seeking to adopt a working solution. Nigel Davies, chair of the AEC (UK) committee explains, “The importance of these standards cannot be underestimated. In the bigger picture of BIM development and standardisation in the UK, the AEC documents provide a working implementation of those codes. Our aim is to provide continual updates to align with the major initiatives taking place. Where guidance doesn’t yet exist, we help to bridge the gap between non-standardisation and a unified framework.”

Of particular note in this release:

  • Definition of BIM modelling workflows and co-ordination of collaborative working
  • Advice on separation of modelling data, reference use and procedures
  • Workspace organisation
  • Object naming recommendations

If your company uses, or is considering the adoption of Bentley’s BIM authoring tools, this document will assist you in their configuration, installation and use.

Download the AEC (UK) BIM Standard for Bentley Building here.

Please email the committee via if you have any comments or feedback on the first release of this standard.

AEC (UK) launches updated CAD layer standard

17 August 2011

The AEC (UK) committee is proud to announce that the updated version of the AEC (UK) CAD Standards for Layer Naming is now available for download. Version 3.0, the latest version of the most widely adopted layering standard in the UK, is released to align better with BS1192:2007’s guidelines and the latest Uniclass classifications. Updates and enhancements include:

  • Additional discipline codes not covered by BS1192:2007
  • Updated implementation of Uniclass tables F & G
  • Enhanced table Z for more structured definition of non-physical, CAD-based elements
  • Full compliance with the BS1192:2007 Presentation field
  • Expansion of the 4-character Descriptions field to full, clear, English terms
  • Updates to the “View” field to better integrate layer standards with 3D and BIM software

Nigel Davies, chair of the AEC (UK) Committee commented, “Even with all the progress we are seeing towards BIM adoption, the importance of data organisation starts with a consistent and clear CAD layering standard. The changes to the AEC (UK) layer standard have been made by the companies using this standard. It’s a testament to the robust, coordinated methods employed by many of the forward-thinking practices in the UK, small and large, that this latest release is as popular and important to the UK design and construction industry as the original was 10 years ago.”

AEC (UK) CAD Standards For Layer Naming v3.0

AEC (UK) BIM Standard for Revit

25 June 2010

Download the AEC (UK) BIM Standard For Revit v1.0 now!

The AEC (UK) BIM Standard, released in November of 2009, was developed as a generic document referring to the techniques and concepts utilised in using BIM technology. It was intended to be applicable to all software platforms.

This larger document looks to interpret and expand those concepts with specific reference to Autodesk Revit, supplementing it with further best practice and practical policy. Working practices which conform to standards such as BS1192:2007 are also incorporated to allow this document to work alongside current project management and document control protocols.

In short, if you represent a design practice which is looking to adopt BIM methodology and has chosen to use Revit as the primary tool to do so, then this document should cover your requirements.

This standard is provided as a template to download and incorporate into your office or project protocols. Although this standard has no legislative backing, it is written in the context of rules to be followed rather than points to cover. Companies and individuals downloading the standard are free to take on as much or as little as they wish, but the wider acceptance of the document as an industry standard would require that it remain as close as possible to the original form.

Future releases of the Standard will look to cover technological advances and the wider BIM ecosystem, incorporating other professions in the design and construction process, such as Quantity Surveyors, Specification Writers, Fabricators, Manufacturers, Contractors and Facility Managers.

Above all, the authors hope that this is a clear, concise and readable explanation of working best practices in Revit and a solid foundation for efficient collaboration and communication.

This is a live project so please feel free to email the committee on if you have any comments or feedback.

Paul Woddy
Revit Sub-Committee Chair


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