This is the second of our quarterly updates for Uniclass in 2026. It includes improvements across six tables, a result of external input from users and internal development roadmaps.
As part of the development of new content to support circular construction principles and re-use considerations, the Activities table has been extended to cover pre-demolition and pre-refurbishment auditing. Additionally, a new Project Management code has been added, ‘Design for disassembly strategy’.
For consistency across all Uniclass tables, 38 codes in the Spaces/ locations table have updated to their plural from a singular form. In addition to these changes, the existing ‘Clean utility’ code has been renamed to ‘Clean utility rooms’, highlighting that it is intended for medical spaces and a new code for ‘Dirty utility rooms’ was added as an antonym following feedback from users.
‘Notification (NO)’ has been added to the Form of information table following careful consideration. This code is intended to cover all types of notifications, including but not limited to those issued for a compensation event and termination of contract as well as formal notifications of instruction or acceptance.
New M&E codes have been added to the Products table to facilitate the classification of additional ventilation and pipework products.
A total of 12 new classifications and 40 amended codes are included in this release, reinforcing Uniclass as a robust and evolving classification system for global application across diverse sectors and industries. For full details of changes, refer to the relevant revision sheets and change logs.
Previously used codes
We aim to minimize changes to existing codes and classifications, but we always take feedback from users into account. Any changes are the result of this input, combined with our own ongoing review, and this sometimes means that a code is moved to another location in the tables – or deleted completely.
Following feedback from government department users of Uniclass, we have made every code that has been used since Uniclass was first published in 2015 available, together with information on the codes that they have been replaced by, where appropriate. Deleted and revised codes are now included in the site search facility, and a separate Excel file that lists all the withdrawn codes is also available.
Continuing input and feedback
Between updates, we regularly liaise with a growing number of individuals and organizations using the tables in order to provide support, and to evaluate requests for new codes. We are grateful to all of the organizations that we have worked with for their input. As we share details of this activity, industry professionals can learn more about who else is using the tables, what purposes they are using them for, the range of changes to expect and the reasons for those changes.
The work of maintaining and enhancing Uniclass to continually support the needs of those operating in the built environment is an ongoing exercise. We welcome comment and input from all sectors in the construction industry via the website – https://uniclass.thenbs.com/feedback.
Changes to published versions
Status and revision information is available alongside each Uniclass table. Each information sheet (PDF) provides a summary of the changes made, as well as code-by-code details. A full list of all changes is also available in the Excel change log.
Download the tables
The current status of the classification tables is listed below. (See also: change log)
