Download the AEC (UK) documents here.

AEC (UK) BIM Protocols

AEC (UK) BIM Protocol v2.0 (Main document)

AEC (UK) BIM Protocol – BIM Execution Plan v2.0

AEC (UK) BIM Protocol – Model Matrix v2.0

AEC (UK) BIM Protocol For Autodesk Revit v2.0 (Supplementary document for Autodesk Revit)

AEC (UK) BIM Protocol For Autodesk Revit – Model Validation Checklist v2.0

AEC (UK) BIM Protocol For Bentley ABD v2.0 (Supplementary document for Bentley AECOsim Building Designer)

AEC (UK) BIM Protocol For Bentley ABD – Model Validation Checklist v2.0

AEC (UK) BIM Protocol For GRAPHISOFT ArchiCAD v1.0

AEC (UK) BIM Protocol For GRAPHISOFT ArchiCAD – Template Checklist v1.0

AEC (UK) BIM Protocol For GRAPHISOFT ArchiCAD – Model Validation Checklist For Import v1.0

AEC (UK) BIM Protocol For GRAPHISOFT ArchiCAD – Model Validation Checklist For Export v1.0

AEC (UK) BIM Protocol For Nemetschek Vectorworks v1.2 * NEW! *

AEC (UK) CAD Standard

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

AEC (UK) Model File Naming Handbook v2.4

AEC (UK) Drawing Management Handbook v2.4

Older versions

AEC (UK) BIM Standard v1.0

AEC (UK) BIM Standard for Bentley Building Products v1.0

AEC (UK) BIM Standard For Revit v1.0

AEC (UK) Basic Layer Naming Handbook v2.4

30 Responses to Documents

  1. […] What the AEC standards do now is assist designers to use common technical terms, as they did before, but with reference information on how to manage BIM projects using a ‘BIM Execution Plan.’ […]

  2. Grace Lim Singapore says:

    Hi, Really appreciate the document. Just highlight 2 minor typo in aecukbimprotocolforautodeskrevit-v2-0.pdf, PDF page 5 & 6, it should be “Revit” sub-committee, instead of “Bentley” sub-commmittee.

  3. Brian says:

    Can someone suggest which CAD Layer reference to use for Car Parking Equipment such as automatic barriers, Ticket Dispensers, POFs & P&Ds?

  4. Daniel Penna says:


    Thanks for providing these Standards. They’re well written and clear to implement. It’s a refreshing change from the theoretical brain-storming that many experts still seem to be hung up on. The theory is clearly implicit in this Standard, but it’s instrumented through straightforward procedures.

    One question though; where can the Project BIM strategy pro-forma and BIM Strategy guidance note be downloaded? I’d really like to have the complete package.

    Kind regards

  5. Kevin Fielding says:

    The AEC Standards for Revit include naming standards for Models, Views, and Worksets, but not for Sheets, how are people naming, and organising them in a Revit environment?

    • AEC (UK) Chair says:

      The sheets are covered in the standard. It specifies using the same naming convention as for your drawings. So, for example, if you had a drawing number a/101, your sheet should be A101.

      • Kevin Fielding says:

        My query was more related to relationship between the file number and the sheet number in relation to the concatenated filename structures of the AEC and BS1192 standards. I suppose this is more of an implementation issue, and outside the scope of the documents. Revit cannot easily handle the BS1192 file naming of exported sheets / drawings without 3rd party plug-ins.

        Looking forward to the 2.0 standards.

  6. Does anyone know when version 2.0 of the BIM and Revit standards will be released?

    • AEC (UK) Chair says:

      We’re working on v2.0 generic, Autodesk and Bentley right now, Balazs. We’re also hoping to release a Vectorworks version as soon as possible afterwards as well.
      We don’t have a guaranteed release date yet, but we hope it will be before the summer.
      Thanks for getting in touch and watch this space for future updates.

      • Rob Jackson says:

        Still forgetting Graphisoft ArchiCAD :( Volunteered to help in July last year – see post on this forum. Disappointed we (as a community) still have no involvement / inclusion.

      • AEC (UK) Chair says:

        Hi Rob
        ArchiCAD is still on the list – once we have the new versions out of the way. I have not forgotten your offer.

  7. Chris D says:

    I notice that dates are included as a necessary part of the interchange process but date formats are not included in your standard.

    The ISO format for dates is YYYY-MM-DD e.g. 2012-12-31

    The ISO date format should be included in your BIM standard to facilitate transfer of data with North America, as parochial US/UK date formats are easily confused.

  8. David Simpson says:

    Great work!

    Will you be producing DWT files for AutoCAD based on the AEC (UK) CAD Standards, or DWG Layer Export files from Revit?

    I don’t want to start creating these from scratch, if there are imminent “official” versions!

    David Simpson

    • AEC (UK) Chair says:

      Yes, there are already DWT files in existence for v2, and we plan to update those shortly for v3.
      Remapping tables will also be prepared.
      We will confirm schedules shortly.

  9. Paul Oakley says:

    Why did AEC(uk) use an unpublished own version of Uniclass instead of waiting for CPIC, the owners of Uniclass to publish the correct version?

    • AEC (UK) Chair says:

      The purpose of AEC (UK) is to provide a current workable implementation of British Standards and Uniclass. In lieu of the updated versions, we have published with what is currently available to avoid discontinuity. Rest assured that when Uniclass finally publishes we will review the updates and revise the AEC (UK) Standards to suit.

  10. Rob Jackson says:

    Could you confirm when you will be producing the AEC (UK) BIM Standard for ArchiCAD, Microstation and Vectorworks?

    • AEC (UK) Chair says:

      We’re heading for the first release of the Bentley Building BIM standards in September, with discussions set to take place for VectorWorks beginning in August. As for ArchiCAD we’re still short of volunteers to help put in the effort needed. Anyone out there ready to take on the challenge?

      • Rob Jackson says:

        Well as an ArchiCAD user for 10+ years i guess i’m reasonably well qualified in understanding the needs of an ArchiCAD user. I have also written all our office CAD and BIM standards.

        As a company we are also one of the biggest users of ArchiCAD in the country and have used ArchiCAD for 17 years.

        My issue as an ArchiCAD user at the moment with standards is that we are being asked to conform to BS1192 AND AEC by contractors. Whilst they are similar they aren’t fully compatible and this is leading to confusion from others. The AEC standards are currently impractical for us (for example lots of references to Revit terminology) and not workable on ArchiCAD projects and so we have adopted BS1192 as our standard. In truth this isn’t perfect either but is a little more adaptable to international standards which are also important for architects carrying out both work in the UK and abroad.

        Personally i would rather see the AEC standard get either the BS amended or a new BS produced? Whatever emerges needs to be compatible with government thinking.

        Happy to participate in discussions regarding development of UK ArchiCAD standards. I have some reasonable connections to find a few more users if this would help. If you want to set something up then you can contact me on

  11. As a grumpy ex-pat, I’m in, even on the west side of the pond. Over here we refer to it as “lonely BIM” (John Tocci, of Tocci Constructors and BIM evangelist)

  12. I note that in your standards you sometimes refer to the first field as “Discipline” and sometimes as “Owner”, and this field is (usually) a single character. A single character will not always be sufficient for both definitions. It is quite common for projects to have multiple owners that share the same discipline – even quite modest projects. For a real example, working on a refit of a retail unit in a shopping centre we have the shell architect, the existing fit-out architect, and ourselves, the proposed fit-out architect. When the data is handed over at completion the landlord needs to be able to retain this split. I realise that I can modify the standard to suit the project, but by doing so it ceases to be THE standard and dilutes the advantage of using a published standard.

    • AEC (UK) Chair says:

      The standard is a baseline level of compliance, not an exhaustive, prescriptive rulebook for every situation. We recognise that a single approach is critical, but there has to be flexibility to allow for an extensive range of companies, projects and methods. This is exactly why the Discipline code (nominally 1 or 2 characters) has been extended with an Originator to help define the owner when exactly your situation arises:

      “Where necessary this field should include an Originator code to help identify the owner of the contents. For example on larger projects where two architects are involved, it may be necessary to add the company’s initials before the discipline:
      ABC-A- ABC Architects
      XYZ-A- XYZ Architects”

      If you need the originator, use it. If you don’t, don’t. But in every case, “Variations to this convention, either additions or simplifications, should be noted in the project BIM Strategy document.”

      It’s not modifying the standard to something different, and thus diluting it, it’s working within the baseline constraints and still providing an identifiable and common method.

      I hope that helps, and thanks for the comment.

  13. Chris Price says:

    The sample diagram for the model breakup is an interesting break up of the model? Certainly not the approach I would take… Separating overlapping and interacting elements is not a good breakup.

    As model breakup is extremely project specific, I think the diagram should stop at the discipline specific level with a note to simply state “further break down may be required on larger scale projects, but will be specific to the project”

    My 2 cents…

    • AEC (UK) Chair says:


      Yes, the break-down of the modelled components is very important, and is something we intend to look at in more detail in the future. But just as a best practice guide, not a definitive standard. Each project and package is going to have specific requirements which can’t really be generalised. The important factor is the “project BIM strategy document” which can clarify the project-based approaches to this challenge. We will be publishing an example/template very soon.


  14. Claude Bredell says:

    I’m going into a BOM (Big Office Meeting)this a.m., with your 4 Handbooks. There is no agenda (yet), but we will be discussing the training programme of the 5 new Revit workstations. Virtually all of the 12 odd operators have developed their skills in autocad (Only 2 of us know MicroStation, me on SE, and the other guy on V8). I’m going to put these manuals on the server, and hopefully initiate some orderly, dgn/dwg thinking and practices.
    Regards, Claude Bredell

    • Iain Crawford says:

      Hi Claude,

      I was wondering how your BOM went that you described in your previous post. I appreciate this was some time ago but we have found ourselves in a similar situation in our office. We are in the process of setting up 4 or 5 Revit workstations and it would be good if you could provide any feedback (good or bad) with your experiences.

      Kindest Regards

      Iain Crawford

      • Claude Bredell says:

        Hi Iain,
        They went the revit route. I feel it was the correct choice as they are all autocad users. I wasn’t using much CAD at the time, so I wan’t personally affected. But they are not yet using it as a BIM tool, just 3D modelling,drawing and schedule extractions, and cloud rendering.
        The handbooks were useful to me, but I think they use the generic set that is built into the software.
        My apologies for taking so long to answer.

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