Protected lobby

Approved Document B refers to a protected lobby, which is a ‘…lobby which is adequately protected from fire in adjoining accommodation by fire-resisting construction’ and a firefighting lobby, which is ‘…a protected lobby providing access from a firefighting stair to the accommodation area and to the associated firefighting lift’.

Fire safety risk assessment: small and medium places of assembly, published by HM government in 2006 and updated in 2024, defines a protected lobby as: ‘A fire-resisting enclosure providing access to an escape stairway via two sets of fire doors and into which no room opens other than toilets and lifts.’

Approved Document B refers to as a firefighting lobby as, '...a protected lobby providing access from a firefighting stair to the accommodation area and to any associated firefighting lift’.

[edit] Related articles on Designing Buildings

• Ancillary area.
• Approved Document B.
• Approved Document M.
• Corridor.
• Firefighting lobby.
• Firefighting shaft.
• Landings in buildings.
• Lobby.
• Protected escape route.
• Protected stairway.
• Workplace definition.