2019/08/13: An Update On Uniclass 2015

Uniclass is a consistent classification structure for all disciplines in the construction industry. It contains tables classifying items of any scale from a large facility such as a railway, down to products such as a CCTV camera in a railway station.

It’s an essential way of identifying and managing the vast amount of information that’s involved in a project, and it’s a requirement for BIM projects, as set by the BS EN ISO 19650 series of standards.

For more information see:



Uniclass 2 was developed to produce a classification system for structuring information that is freely available for all participants throughout the life cycle of a project and beyond, which is endorsed by all construction and property bodies and professional institutions. It is dynamic, available online in various formats and managed by a team of experts who will monitor requests, update and control versioning.

The tables available in this tool are ready for use in applications to test their usability. Where missing classifications are identified they should be notified to the CPI Committee Secretary directly at info@cpic.org.uk so that they can be added centrally for all to use. All comments and feedback are invited so that a national standard can be achieved for use by all.

Search Uniclass2

The fully searchable Uniclass2 system is available for use at the link below:



Creative Commons Licence
Uniclass2 by Construction Project Information Committee is licensed under a Creative Commons Attribution-NoDerivs 3.0 Unported License.

Uniclass Development Release Individual PDF Downloads

Reference Tables

For more information on the purpose of the Work Results Table, see “An Introduction To Uniclass2” by Ian Chapman, NBS Head of Specification.

BuildingSMART Data Dictionary

The BuildingSMART Data Dictionary (bSDD) is an ISO 12006-3 based ontology for the building and construction industry, which includes tables from the Uniclass classification system. For more information on the bSDD see http://bsdd.buildingsmart.org/

Open Data Certificate

The Uniclass and Uniclass2 systems are now certified as Open Data with the Open Data Institute (www.odi.org).

Last updated: December 17, 2019 at 22:18 pm