Mandatory Occurence Reporting
Principal designers and principal contractors must submit mandatory occurrence notices and reports, during: construction of a new higher-risk building; work on an existing higher-risk building; or work on an existing building that will make it a higher-risk building
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Today, 9th July 2026, the Building Safety Minster, Samantha Dixon published a Ministerial Statement setting out the steps the Government is taking to improve the effectiveness, proportionality and overall operation of the building safety regime.
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On 30 January 2025, Andrew Saunders from the Building Safety Regulator hosted an exclusive webinar for members of The Property Institute, and their APs/PAPs, covering the latest insights and guidance on the BAC Application process for HRBs.
The webinar covered:
- Understanding the BAC assessment process
- Learning what criteria the assessors will focus on for each element of the application
- Preparing your BAC application to the standard required
- How the application will be assessed, and who by
- What criteria will be assessed in the Safety Case Report, Residents Engagement Strategy and mandatory occurrence reporting system information
TPI members can access the webinar recording here
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The Health and Safety Executive (HSE), under whose auspices the BSR operates, has now published three resources to assist with mandatory occurrence reporting (MOR).
The Building Safety Act 2022 introduced a stricter safety regime for higher-risk buildings (HRBs), encompassing work to an existing HRB, work to an existing building that coverts it into an HRB or the construction of an entirely new HRB. Among other things, this requires the principal designer and principal contractor on an HRB construction project to operate a mandatory occurrence reporting system during the works and to report any "safety occurrence" to the Building Safety Regulator (BSR).
A safety occurrence is an aspect of design or an incident or situation relating to the structural integrity or fire safety of an HRB that would be likely, unless remedied, to present the risk of a significant number of deaths, or serious injury to a significant number of people. Outside the construction phase, an accountable person or principal accountable person must submit a mandatory occurrence notice in relation to those parts of an HRB for which it is responsible.
The new MOR system guidance resources can be accessed below:
- Operating a mandatory occurrence reporting system (31 January 2024), which provides guidance on setting up and maintaining a mandatory occurrence reporting system.
- Submitting mandatory occurrence notices and reports (31 January 2024), which provides guidance on reporting incidents.
- Submit a mandatory occurrence notice and report (31 January 2024), which provides a service for submitting a mandatory occurrence notice.