What is a MOR?
A Mandatory Occurrence Report is a crucial component of the Building Safety Act 2022, designed to enhance transparency and accountability in the construction and management of buildings, particularly higher-risk buildings.
Understanding the Building Safety Act
The Building Safety Act 2022 was introduced following major safety incidents, including the Grenfell Tower tragedy, to revolutionize building safety practices in England. Its purpose is to:


How MORs Support the “Golden Thread”
MORs play a pivotal role in the Golden Thread of information—a digital record ensuring all data related to a building’s safety is accurate, up-to-date, and easily accessible to stakeholders. By integrating MORs into this framework, dutyholders can maintain a comprehensive overview of a building’s safety status.
Frequently Asked Questions
Why are Mandatory Occurrence Reports Important?
MORs are essential for:
Preventing Safety Risks: They ensure potential hazards are identified and mitigated before escalating.
Promoting Accountability: MORs create a transparent record of incidents, driving better compliance with safety standards.
Maintaining Compliance: Adhering to MOR requirements is a legal obligation under the Building Safety Act, ensuring dutyholders maintain safety standards.
Who is Responsible for Reporting?
Principal Contractors: Oversee the construction phase and ensure MORs are filed for incidents during building work.
Principal Designers: Accountable for identifying and addressing safety risks in the design phase.
Building Owners: Ensure ongoing compliance during the building’s occupation and maintenance phases.
How to Identify What Needs to Be Reported?
To ensure compliance with Mandatory Occurrence Reporting requirements, focus on these key areas:
Recognize Safety Incidents: Report any events that compromise the building’s structural integrity, fire safety, or pose a risk to occupants. Examples include significant construction defects, unexpected material failures, or issues impacting evacuation routes.
Identify Near Misses: Record situations where a safety hazard was narrowly avoided
, such as an improperly secured fire door discovered before occupancy or a structural element showing signs of potential failure during inspections.
Spot Non-Compliance: Monitor and report breaches of building safety standards or legal requirements, like failure to adhere to fire safety protocols or deviations from approved designs that could affect safety.
By implementing a systematic approach to observation and documentation, stakeholders can ensure every relevant occurrence is captured, reviewed, and acted upon to maintain the highest safety standards.
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