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UK Fire Safety Legislation: What You Need to Know
Fire Safety Guide #22 | A breakdown of the UK’s key fire safety laws — what they cover, who is responsible, and how they work together.
Fire safety in the UK is governed by a series of laws designed to protect people in the places where they live, work, and gather. For landlords, property managers, and businesses, understanding these requirements is essential — both to remain compliant and, more importantly, to keep occupants safe.

This guide explains the three most significant pieces of legislation shaping fire safety today: the Regulatory Reform (Fire Safety) Order 2005, the Fire Safety Act 2021, and the Building Safety Act 2022.

Regulatory Reform (Fire Safety)

Order 2005


Often referred to as the Fire Safety Order (FSO), this legislation forms the foundation of UK fire safety law for non-domestic premises. It applies to workplaces, commercial buildings, public premises, and the communal areas of residential buildings.


A key feature of the FSO is the introduction of the “Responsible Person” — usually the employer, building owner, landlord, or facilities manager. This individual has a legal duty to carry out and regularly review a fire risk assessment, put in place appropriate fire safety measures (both active and passive), provide fire safety training for staff, and ensure escape routes and fire safety equipment are properly maintained.


In short, the FSO establishes proactive fire risk management as a legal requirement in almost every non-domestic building.

Fire Safety Act

2021


Introduced following the Grenfell Tower tragedy, the Fire Safety Act 2021 amends and clarifies the scope of the Fire

Safety Order.


It requires fire risk assessments to consider external walls — including cladding, balconies, and windows — as well as flat entrance doors that open into communal areas. The Act applies to multi-occupied residential buildings of all heights, not just high-rise blocks, and gives fire and rescue authorities stronger powers to enforce compliance.


In essence, the Act ensures that building materials and external wall systems are properly accounted for in fire

risk assessments.

Building Safety Act

2022


The Building Safety Act represents the most wide-ranging reform of building safety in decades. It introduces stricter oversight for high-rise residential buildings and new responsibilities for owners and managers.


It applies to “higher-risk buildings,” defined as residential buildings that are at least 18 metres tall or have seven or more storeys. The Act established a new regulator, the Building Safety Regulator (part of the Health and Safety Executive), and introduced the role of the Accountable Person — usually the building owner or management company — who is responsible for assessing and managing building safety risks.


The legislation also requires the creation of a Golden Thread of information: accurate, up-to-date digital records of the building’s design, construction, and safety measures. In addition, it mandates resident engagement strategies to ensure that occupants are informed and involved in safety matters.


In short, the Building Safety Act focuses on long-term safety management of high-rise buildings, with stronger accountability and regulation.

How These Laws Work Together
The Fire Safety Order (2005) provides the baseline framework for fire safety across most non-domestic premises. The Fire Safety Act (2021) strengthens this framework by clarifying the scope of risk assessments, particularly in multi-occupied residential buildings. The Building Safety Act (2022) adds an additional layer of oversight, accountability, and regulation, specifically for high-rise residential properties.

Together, these laws aim to embed fire safety into every stage of a building’s lifecycle — from design and construction to day-to-day management.
Conclusion
Fire safety legislation in the UK continues to evolve in response to lessons learned from major incidents. For property owners, landlords, and businesses, compliance is more than a legal requirement; it is a moral responsibility. By understanding and adhering to these laws, duty holders can help ensure that buildings remain safe, resilient, and fit
for purpose.
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