A balcony can add useful external space, particularly to upper floors where garden access is limited.
However, balconies can require significant structural support and sometimes interact with shared walls.
This means Party Wall considerations may arise depending on the design.
Does a balcony automatically require a Party Wall Notice?
No.
The Party Wall Act does not apply simply because a balcony is being constructed.
The key question is what physical works are needed to support it.
Structural supports
A balcony may be supported by:
- steel beams;
- brackets;
- columns;
- masonry;
- cantilevered structural members; or
- a combination of these.
If structural steelwork is cut into or supported by a party wall, Section 2 of the Party Wall etc. Act 1996 may apply.
See our Section 2 Party Wall guide for further information.
New columns and foundations
A balcony supported from the ground may require new foundations.
Where these are close to neighbouring structures and deeper than their foundations, Section 6 should also be considered.
Alterations to parapets
Some balconies are created from existing flat roofs.
The project may involve raising or altering parapet walls, which can sometimes be party walls or party structures.
Establishing the status of the wall is therefore important.
Our guide explaining what constitutes a Party Wall under the Act is a useful starting point.
Planning issues are separate
Privacy, overlooking and appearance are commonly raised in relation to balconies.
These are generally planning matters rather than Party Wall matters.
Obtaining planning permission does not remove separate Party Wall obligations where notifiable structural works are proposed.
Simple Survey can review the structural design
If your balcony involves structural alterations close to or within a shared wall, send us the drawings.
Visit our Party Wall service page and we can establish whether notices are required.