Submit a mandatory occurrence notice and report
Use this service to submit a mandatory occurrence notice and report for higher-risk buildings to the BSR.
Applies to England
You must a submit a mandatory occurrence notice and report for a safety occurrence in a higher-risk building.
A higher-risk building is a building that has at least:
- 7 storeys or is at least 18 metres high
- 2 residential units or is a hospital or a care home
The notices and reports must be for safety occurrences related to fire safety (design and construction phase), fire spread (occupation phase) or structural failure (all phases) that caused, or are likely to present a risk of:
- the death of a significant number of people
- serious injury that needs immediate treatment in hospital or causes a permanent or irreversible disabling condition to a significant number of people
Safety occurrence are incidents or risks involving:
- structural failure of the building
- fire safety (design and construction phase)
- the spread of fire or smoke in the building (occupation phase)
Unless they are remedied, safety occurrences would be likely to present a risk of serious harm to people when the building is in use and include both:
- an incident that has happened
- the risk of an incident happening in the future
You must do this even if the safety occurrence is remedied immediately. The only exception is when a principal contractor remedies issues to ongoing building work, which are unlikely to risk significant numbers of death or serious injury.
Read guidance on safety occurrences that must be reported to the Building Safety Regulator (BSR).
Who must submit a mandatory occurrence notice and report
Submit a mandatory occurrence notice and report if you are, or you are acting for:
- an accountable person or principal accountable person
- principal contractor or principal designer and construction work has started on the building
Mandatory occurrence notice
You must submit a mandatory occurrence notice as soon as you can when a safety occurrence is identified, and before you submit your report.
You will need to provide:
- the high-rise residential building registration reference or the building control application reference
- your contact details
- the date and time the safety occurrence was identified
- a brief description of the safety occurrence
- any immediate actions you’ve taken since to keep people safe
When you submit a mandatory occurrence notice, BSR will give you a reference number you can use to submit a mandatory occurrence report.
Mandatory occurrence report
You must submit a mandatory occurrence report after submitting your notice and within 10 calendar days of identifying the safety occurrence.
You will need to provide:
- your mandatory occurrence notice reference
- who submitted the notice – if someone else submitted the notice, we will need your contact details
- the type of safety occurrence you are reporting
- what happened or has the potential of happening
- what caused the safety occurrence and how it was discovered
- who is involved and the effect or potential effect on them
- what you have done and plan to do to keep people safe
- anything you think should be shared for others to learn from
- any supporting information, such as documents, videos, or photos
Get help using this service
Telephone: 0300 790 6787
Monday to Friday, 8:30am to 5pm (except Wednesdays when we are open from 10am to 5pm, and public holidays when we are closed).
If you would prefer to speak to us on the phone in a language other than English, a translation service is available.