Gateway 3 - Completion Certificates

In the UK context of the Building Safety Act, Gateway Three signifies a critical milestone in the regulatory process for higher-risk buildings nearing completion of construction or major refurbishment.

At Gateway Three, developers or building owners must demonstrate to the Building Safety Regulator that the completed building meets stringent safety standards and regulatory requirements through comprehensive documentation and evidence.

It is important to note that the Building Safety Regulator wants to know that the building was built as per the design. Approval at Gateway Three enables the building to be occupied, affirming that appropriate measures have been taken to prioritise building safety throughout its development.

NB Delivering the golden thread: Guidance for dutyholders and accountable persons, published by the Construction Leadership Council (CLC) in August 2024, defines completion certificate application (gateway 3) as: ‘application milestone where information and documents are required to gain a completion certificate prior to occupation.’

[edit] Related articles on Designing Buildings

• Building a Safer Future
• Building Safety Act
• Building Safety Regulator.
• Building safety.
• Fire Safety Act.
• Gateway.
• Gateway 1 - Planning Gateway One
• Gateway 2 - Pre-Start on Site
• Grenfell Tower fire
• Grenfell Tower Inquiry.
• Hackitt review of the building regulations and fire safety, final report.