Party walls are walls used by more than one ‘owner’. The dividing wall between two houses is the most obvious example. Floors between flats are ‘party structures’ and boundary walls can be ‘party fence walls’.
WHAT BUILDINGS ARE COVERED BY THE PARTY WALL ACT?
All types of buildings are covered:
If you share a party wall, party structure or a party fence wall with another person you may be governed by the provisions of this Act.
Most work of a structural nature including the following:
Those owners of land who wish to conduct such works (’building owners’) as well as the owners and certain occupiers of adjoining land or buildings (’adjoining owners’). There may be several ‘owners’ to consider e.g. lessees and freeholders.