Between Tenancies: The Compliance Void Landlords Cannot Afford to Ignore

Every commercial lease has moments of transition, and each one quietly rewrites the fire safety picture of the building. A tenant vacates. Keys are returned. For a few weeks — sometimes months — the premises sit in a state of limbo that neither party has planned for. It is in this interval that some of the most serious compliance failures in UK commercial property occur.

Who Is the Responsible Person When Nobody Is Responsible?

The Regulatory Reform (Fire Safety) Order 2005 places duties on the 'responsible person' — broadly, the employer or person with control of the premises in connection with a trade, business or undertaking. In a multi-occupied building, landlord and tenant duties coexist: the landlord typically retains control of common parts, while the tenant holds responsibility for their demised unit.

The trouble arises at the boundaries. When a tenant vacates, their obligations fall away with their occupation. The landlord, or managing agent, becomes the de facto responsible person for the empty unit — often without realising it. Fire alarm systems may be isolated, extinguishers left unrecharged, emergency lighting batteries degraded through disuse, and the fire risk assessment may still bear the name of a company that no longer occupies the floor.

If a fire breaks out in that void period, the question an investigating officer will ask is not 'whose lease was it?' but 'who had control, and what did they do about it?'

The Hazards of Vacant Commercial Premises

Empty units are not passive spaces. They accumulate risks of their own:

• Disused systems: fire alarms and sprinklers switched off or left in an unmonitored state to avoid call charges.
• Accumulated combustibles: waste, packaging and abandoned fittings left behind at handover.
• Security failures: unauthorised entry, squatters and arson attempts, which rise sharply in vacant buildings.
• Degraded equipment: extinguishers past their annual service date, emergency lighting batteries failing monthly self-tests.
• Stale documentation: risk assessments and evacuation plans reflecting the previous occupier's layout and use.

Each of these is manageable individually. Together, they describe a building that is materially less safe than the day the tenant left — and a landlord whose paperwork no longer describes reality.

Building Fire Safety into the Lease

The remedy lies largely in anticipation. Well-drafted tenancy agreements and schedules of condition should treat fire safety as a transferable asset, not an afterthought. Practical measures include:

1. Handover audits: a documented inspection at both commencement and termination, recording the state of extinguishers, alarm systems, emergency lighting and signage, with service records transferred in full.
2. Obligation to leave compliant: covenants requiring the outgoing tenant to hand back the unit with servicing current and defects rectified, evidenced by certificates.
3. Named interim responsibility: an express clause confirming who acts as responsible person during any void, and requiring a fresh or updated fire risk assessment before re-letting.
4. Information transfer: a contractual duty to provide all fire safety documentation — commissioning certificates, maintenance logs, as-built plans — within a fixed period of termination.
5. Void-period regimes: agreed arrangements for isolating or maintaining systems safely, securing the premises and inspecting them at regular intervals.

Agents managing portfolios across the UK's regional commercial centres will recognise that practices vary widely. The landlords who fare best in disputes are those whose leases make the standard explicit rather than assumed.

The Re-Letting Window Is the Critical Moment

Before a new tenant takes occupation, treat the unit as though it were newly constructed from a compliance standpoint. Commission a fresh fire risk assessment reflecting the intended use of the incoming occupier — an office fit-out, a light industrial unit and a food premises each carry materially different profiles. Verify that all extinguishers hold current service labels, that the alarm system is operational and certificated, and that escape routes, signage and emergency lighting meet the layout the new tenant will actually create.

This is also a natural point to engage a competent fire safety specialist. An independent review at change of occupation costs a fraction of the expense of an enforcement notice, a voided insurance claim or, far worse, a fire in a building whose protection lapsed between tenants.

Tenant transitions are inevitable. Compliance voids are not. The difference lies in whether the landlord planned for the gap — or discovered it after the event.