HMO Zone Plans

HMO Fire Safety Requirements

Houses in Multiple Occupation (HMOs), particularly those extending over three storeys, confront unique fire safety challenges due to their complex architecture and high occupancy. To address these risks, most of these HMOs are required to install Grade A fire alarm systems, which are comprehensive in their detection and alarm capabilities. Grade A systems incorporate an extensive network of interconnected smoke and heat detectors, sounders, and a central control panel, ensuring early detection and a rapid response to any fire incidents.

However, the installation of a Grade A system is just the beginning of a thorough fire safety strategy. Many landlords, after installing these sophisticated systems, might overlook the importance of a Zone Plan. It’s often not until a fire risk assessment is conducted that the absence of a Zone Plan is noted as a significant safety oversight.

Understanding Grade A Fire Alarm Systems

Grade A fire alarm systems, recognized as the pinnacle of fire detection technology, are specifically engineered for comprehensive protection, particularly in complex environments like densely populated HMOs. These systems are characterized by their network of interconnected devices, including smoke detectors, heat detectors, and manual call points, all integrated into a central control panel. This integration is key to their functionality.

Interconnected Smoke and Heat Detectors: Strategically placed throughout the property, these detectors provide real-time monitoring of signs of fire, such as smoke or an unusual rise in temperature. Their interconnected nature means that activation of one detector signals the entire system, ensuring an immediate and unified response.

Sounders for Immediate Alert: These systems are equipped with sounders (alarms) that are activated simultaneously across the building, ensuring that all occupants are alerted to the danger at the earliest possible moment.

Central Control Panel: The heart of a Grade A system, the central control panel, serves as the command centre. It monitors inputs from all detectors and manual call points, identifies the specific zone where the alert originated, and enables manual control over the system for testing or during an emergency.

Rapid Response and Early Detection: The primary aim of a Grade A system is early detection, which is crucial in preventing the spread of fire in a densely populated HMO. By detecting fire at its initial stages, these systems provide occupants with the maximum possible time for evacuation.

Compliance with Safety Standards: Grade A systems are designed in compliance with stringent safety standards, ensuring that they meet the specific needs of high-risk environments like HMOs. They are often subject to regular maintenance and inspection to ensure optimal functionality.

The Need for a Zone Plan

A Zone Plan is pivotal in the fire safety strategy for HMOs, especially those with Grade A fire alarm systems. It serves multiple critical functions:

Accurate Response: By dividing the HMO into distinct fire alarm zones, a Zone Plan enables a precise response to fire incidents. In the event of an alarm, it quickly directs attention to the exact area, facilitating a faster and more efficient firefighting effort.

Guidance for Occupants and Responders: It provides essential navigation aid for both residents and emergency services. The plan shows the layout, escape routes, and fire locations, ensuring everyone knows the quickest and safest way out, and where to focus firefighting efforts.

Legal Compliance: Many regions mandate the presence of a Zone Plan near the fire alarm control panel in HMOs. This compliance ensures that the safety measures are not only in place but also clearly communicated and accessible to all occupants.

Key Components of an Effective Zone Plan

Detailed Layout:
It should comprehensively represent the property’s layout, showing all rooms, exits, and shared spaces. This level of detail helps in understanding the building’s structure.

Clearly Marked Zones: The plan must distinctly mark each fire alarm zone. Labelling or colour coding helps in quickly identifying the concerned area in an emergency.

Safety Equipment Locations: The positions of fire safety equipment, like extinguishers and manual call points, need to be clearly marked. This information is crucial during a fire emergency.

Escape Routes: It’s vital to have all primary and secondary escape routes clearly outlined. This ensures everyone knows the safest and quickest way out in case of a fire.

‘You Are Here’ Indicator: For effective orientation, especially during a crisis, a ‘You Are Here’ marker is essential. It helps occupants and responders understand their current location relative to the rest of the building.

Correct Orientation: The Zone Plan should accurately reflect the building’s physical orientation. This accuracy is key to preventing confusion during an emergency evacuation or response.


The integration of a Zone Plan in an HMO with a Grade A fire alarm system is not just a compliance requirement but a vital aspect of ensuring comprehensive fire safety. The Zone Plan’s role in facilitating accurate emergency responses, guiding occupants and responders, and fulfilling legal obligations cannot be overstated.

If your HMO is equipped with a Grade A system and you require a professionally crafted Zone Plan, we can provide one. We can put together a detailed, compliant, and easy-to-understand Zone Plans tailored to the unique layout of your property. Contact us for more information.

Carl Evans

Written By Carl Evans

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