Every facilities manager knows the rhythm of planned maintenance. Lifts get serviced on a schedule. Fire alarms get tested and logged. Water systems get checked for legionella risk. HVAC gets its annual service. Somewhere on every estate is a compliance calendar tracking exactly when each system is due – because everyone knows what happens if statutory inspections lapse.
Emergency communication rarely gets the same treatment.
It is usually installed during construction or refurbishment, checked at handover, and then left to run quietly in the background. It doesn’t come with the built in statutory reminder of a lift certificate, so nobody’s estate management system flags it. Yet, it remains the single system that every other emergency protocol depends on the moment a crisis occurs.
The building that outgrew its own system
There is a predictable way this gap opens up:
- The building is constructed, and its communication system is perfectly tailored to the original layout, capacity, and zone count.
- Over time, the estate evolves – an extension goes up, internal walls move, departments swap locations, or temporary structures are added.
- Each structural change gets its own planning permission, fire risk assessment, and building control sign-off.
Unless someone explicitly thinks to revisit audio and broadcast systems, the communication infrastructure carries on as it was installed years – or even decades – earlier.
The result is a common contradiction on modern estates: the newest, most recently refurbished wing is often served by the oldest, least-reviewed communication system.
Daily use: The secret to system resilience
Part of why this gap goes unnoticed is that emergency communication is often treated strictly as a crisis tool – checked only against the question, ‘would this work during a fire drill’? When a system is never tested in day-to-day operations, dead zones and reach gaps remain hidden until an actual incident occurs.
The estates that solve this problem treat communication as a dual- purpose asset. Using the system for routine, daily operational messages – shift changes, site announcements, or team coordination – means any coverage gap shows up on an ordinary Tuesday, rather than being discovered mid-crisis.
Why this needs your attention now: Martyn’s Law Section 27 Guidance
With the enforcement of Martyn’s Law (the Terrorism Protection of Premises Act), emergency communication is moving from ‘best practice’ to direct legal scrutiny.
The Home Office’s Section 27 Statutory Guidance outlines precise expectations for how duty holders must approach emergency preparedness and public protection procedures:
Martyn’s Law assessments:
- Point 36- Avoid default fire alarms: You should avoid using the normal fire alarm. Triggering a fire alarm during a security threat can drive occupants out into danger rather than keeping them safely sheltered.
- Point 47 – Multi-channel delivery: Communication should be delivered through verbal communication, signage, and audio broadcasts. Relying solely on paper plans or basic bells is no longer sufficient.
- Point 48 – Message clarity: Information should be simple, clear, and easy to understand. In audible zones, messages must be unmistakable to prevent panic and delay.
- Point 49 – Distinct scenario instructions: Each procedure must have its own clear instructions. The message for an evacuation should be different from that of a lockdown or invacuation.
If an estate’s communication system hasn’t been reviewed since layout changes were made, or if it can only sound a single generic alarm, it already falls short of these statutory expectations.
The bottom line
Revisiting emergency communication doesn’t require starting over. It simply means ensuring that every physical change to your estate triggers a review of your communication coverage. By separating your security alert protocols from your standard fire alarm and integrating zoned voice messaging into daily operations today, you ensure your site isn’t just legally compliant, it is genuinely safe.
