Who is the 'responsible person' under the RRFSO?

"Who is the responsible person for this building?" sounds like it should have a simple, one-word answer, and sometimes it does. Often, though, the honest answer is "it depends on the part of the building you mean" — because the current Regulatory Reform (Fire Safety) Order 2005 defines the role functionally, based on control of premises, rather than by job title.

The legal definition, in plain terms

Under the RRFSO, the responsible person is, broadly, an employer in respect of workplace premises they control, or otherwise the person who has control of the premises in connection with a trade, business or other undertaking — or, failing either of those, the owner. It's a functional test based on control, not a title anyone gets assigned formally.

Why more than one responsible person can exist in one building

In a mixed-use or multi-tenanted building, different people can hold responsibility for different parts at the same time — a freeholder or managing agent for common parts, individual employers for the parts of the building they occupy and control. This split responsibility is normal and expected under the Order, but it only works safely if everyone involved actually knows which parts are theirs. See our fuller piece on shared responsibility across multiple responsible persons for how that split typically plays out.

Owner vs occupier vs managing agent

A common point of confusion is assuming ownership automatically equals responsibility. It doesn't, necessarily — if a tenant has full control of premises under a lease, the tenant may hold the responsible person duties for the areas they control, while the landlord retains it for shared or retained parts. Where a managing agent is appointed, they often carry out the practical duties day to day, but the underlying legal responsibility generally still sits with whoever appointed them, unless the arrangement is very clearly and formally structured otherwise.

• –Check who has actual control of a given part of the building — not just who owns it on paper
• –In multi-tenanted buildings, confirm each occupier's responsibility for the areas they control
• –Get any delegation to a managing agent or facilities team documented clearly, including exactly what is and isn't covered
• –Don't assume the previous owner's or agent's understanding of the split still applies after a change of ownership or management
• –When in doubt, get an explicit written confirmation of who holds which duties, rather than relying on assumption

Why this matters more than it might seem

Getting this wrong doesn't just create administrative confusion — it creates a real gap in fire safety management, because if everyone involved assumes someone else is covering a particular duty, nobody actually does it. This is a genuinely common finding when a new managing agent takes over a building: an assumption that fire safety was being handled by the previous party, with no clear record confirming it actually was.

On a portfolio with several responsible persons across different buildings — or several people sharing responsibility within one building — keeping a clear, current record of who owns what, alongside the fire safety records themselves, removes a lot of this ambiguity. That's less about software solving a legal question and more about making sure the answer, once established, doesn't get lost the next time someone changes role.

Who specifically counts as the responsible person for a given building is a legal question that depends on the exact facts of ownership, occupation and control — this is worth confirming against the current RRFSO and, where it's genuinely unclear, proper legal advice.