London is one of the most complex fire safety environments in the country. Shops with flats above them, converted Victorian houses split into HMOs, mixed-use office blocks, hotels, restaurants and thousands of high-rise residential buildings all sit side by side. According to London Fire Brigade, around 800,000 premises across the capital fall under fire safety law.
If you own, manage or run any of them, you almost certainly need a fire risk assessment – and the rules have changed significantly over the past few years. This guide explains what the law requires in London in 2026, who is responsible, and what has changed recently.
The main piece of legislation is the Regulatory Reform (Fire Safety) Order 2005, usually called the Fire Safety Order. It applies to virtually all non-domestic premises in England and Wales, and to the common parts of residential buildings such as flats and HMOs.
London has no separate fire safety law of its own. What makes London different is the scale and density of its buildings, and the fact that the Order is enforced in the capital by the London Fire Commissioner, through London Fire Brigade's fire safety inspectors.
The Order has been strengthened several times since the Grenfell Tower fire, most notably by:
In short, yes, if you are responsible for any of the following in London:
The law places the duty on the Responsible Person. That is usually the employer, the owner, the landlord, the freeholder or the managing agent – whoever has control of the premises. In many London buildings there is more than one Responsible Person (for example, a freeholder controlling the common parts and a business tenant controlling a shop on the ground floor). Where that happens, they are legally required to cooperate and share information with each other.
Before October 2023, a business only had to record its fire risk assessment in writing if it had five or more employees, held a licence, or had been issued an alterations notice. That exemption no longer exists. Since 1 October 2023, every Responsible Person must record the full assessment in writing, regardless of the size of the business.
You must also record your fire safety arrangements – how you plan, organise, control, monitor and review the measures you have in place – and, if you appoint someone to carry out or review the assessment, record their name and, where relevant, their organisation.
For residential buildings with two or more sets of domestic premises, the Fire Safety Act 2021 confirmed that the assessment must consider the building's structure, its external walls (including cladding, balconies and windows) and the entrance doors to individual flats. This applies to buildings of any height, not just tower blocks – an important point for the many low and medium-rise blocks across London.
Under the Fire Safety (England) Regulations 2022:
High-rise residential buildings are also subject to the separate building safety regime under the Building Safety Act, including registration and safety case requirements. That regime sits alongside the Fire Safety Order; it does not replace the need for a fire risk assessment.
From 6 April 2026, Responsible Persons for residential buildings that are 18 metres or seven storeys or taller, or over 11 metres with a simultaneous evacuation strategy, have new duties to plan for residents who may need help to escape. In outline, they must:
All of this is voluntary for the resident, and depends on their consent. London Fire Brigade publicly urged Londoners and building owners to prepare for these changes ahead of the April start date.
The law says the assessment must be “suitable and sufficient” and carried out by a competent person – someone with enough training, experience and knowledge to do the job properly for that type of building.
At the moment there is no single licence that a fire risk assessor must legally hold. That is changing. The Grenfell Tower Inquiry recommended a mandatory accreditation system for fire risk assessors, the government accepted it in full, and in March 2026 it launched a consultation on mandatory certification for assessors in England, which closed in June. A new British Standard for assessor competence, BS 8674:2025, has also been published.
Until the new rules arrive, the safest approach is to choose an assessor who:
The law does not set a fixed review date. It requires the assessment to be reviewed regularly and whenever there is reason to believe it is no longer valid. In practice, you should review it:
London Fire Brigade inspects premises through routine audits, after fires, and in response to complaints. Where it finds problems, it can issue:
The Brigade publishes the enforcement and prohibition notices it serves on a public register on its website, searchable by borough. In other words, a notice is not only a legal problem but a reputational one. The Brigade has said that over a five-year period it issued more than 200 prohibition notices, most of them to protect people living in unsuitable accommodation.
Serious breaches can lead to prosecution, with unlimited fines and, in the most serious cases, imprisonment.
Every building is different, but in London a good fire risk assessment will often need to look closely at:
Whale Fire carries out professional fire risk assessments and provides practical fire safety solutions for businesses, landlords and managing agents. If you are unsure whether your London premises meet current requirements – or you have received a letter or notice from London Fire Brigade – get in touch for clear, practical advice.
This article is general guidance and does not constitute legal advice. Requirements depend on the type, size and use of your premises. Contact Us - Whale Fire