Section 1 of the Fire Safety Act 2021, which amends Article 6 of the Regulatory Reform (Fire Safety) Order 2005
Where a building contains two or more sets of domestic premises, the things to which the Order applies include:
(a) the building’s structure and external walls and any common parts;
(b) all doors between the domestic premises and common parts.
“external walls” include:
doors or windows in those walls; and
anything attached to the exterior of those walls (including balconies).
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