Do I need fire doors and smoke detectors?
If you own a two-storey home, a loft conversion is considered a third storey for your Brighton home. Therefore, you have to install a wide fire-escape window and fire doors that can withstand heat for 30 minutes. One will be installed at the top of the new stairs and on the doors in all the rooms of the house. You will also need smoke alarms in your loft. These should be wired to the main control panel, and include a backup battery for power supply.