How Shared Passageway Freeholds Work in Practice
In mid-terrace Victorian and Edwardian housing, builders frequently incorporated a covered pedestrian alleyway to give back-garden access to both neighbouring properties without having to walk through the front rooms.
To maximize living space on the first floor, the master bedroom was extended across the alleyway to connect with the neighbour's brickwork.
In this setup:
• The ground: The passageway floor is usually owned equally up to the midpoint (or owned by one house subject to a right of way in favour of the other).
• The airspace: The upper bedroom is a flying freehold owned by House A, resting on the party walls and floor joists suspended over the passageway.
| Structural Element | Ownership / Control | Maintenance Duty | Typical Dispute Risk |
|---|---|---|---|
| Upper Bedroom Floor & Joists | Flying Freehold Owner | Maintain structural timber and flooring | Damp or woodworm from unheated passage |
| Passageway Ceiling Plaster | Flying Freehold Owner (underside) | Plasterboard / fireproof boarding | Impact damage from tall delivery vehicles |
| Passageway Ground Surface | Joint Frontagers / Title Owner | Keep paved surface clear of tripping hazards | Cracked concrete or blocked gullies |
| Side Supporting Brick Walls | Party Wall / Adjoining Owner | Maintain structural masonry support | Spalling brickwork or vehicular scrapes |
Fire Protection and Building Regulations
Under Approved Document B (Fire Safety) of the Building Regulations, the underside of an overhanging bedroom above a shared vehicular or pedestrian archway must provide at least 30 to 60 minutes of fire resistance.
When buying, ensure the surveyor confirms that the passageway ceiling is lined with non-combustible fire-rated plasterboard.