You will need to comply with these requirements if you are the owner of a Class 1, 2 or 3 building or Class 4 part of a building constructed before 1 August 1997.
A self-contained smoke alarm must be installed in each dwelling or sole-occupancy unit in locations determined in accordance with this practice note.
This Practice Note specifies appropriate locations for the installation of self-contained smoke alarms or hard-wired smoke alarms or detection systems in certain public or shared accommodation buildings.
Please consult the responsible agency for more information and to ascertain the level of compliance (if any) that may be required by your business.