There are regulations since 2003 though (from Oasis):
Nothing about internal alarms which, if you're living next door in a sem-d, really does the damage.
A European standard for external intruder alarms replaced all current national standards in September, 2003. The new standard incorporates stricter controls regarding minimum and maximum duration for the sounding of alarms. The new limits are 90 seconds minimum and 15 minutes maximum. However, the new controls only apply to alarms fitted from September, 2003.
Nothing about internal alarms which, if you're living next door in a sem-d, really does the damage.