I am doing some maintenance for a local pub and have noticed gaps between the pub and accommodation above.

The accommodation isn't let out and is only used by the manager and his family. Do they need fire protection between the two? Should the alarm be extended upstairs or just sounders? The stairs are separated at the bottom and don't go through the pub.

Thanks in advance

If the compartmentalisation is fixed then the alarm need not automatically need to extend to the accommodation if it has separate access, otherwise you will need sounders in the accommodation to give 75dB at bedhead and 60-65dB elsewhere.

If the flat has it's own smoke alarms you don't automatically need detection from the pub system 

Thanks for your help.