Party Walls and BoundariesParty Walls are defined as a wall which forms part of a building and stands on lands of different owners i.e usually the common wall separating two buildings. A Party Fence Wall is a wall which straddles a boundary, but is not part of a building.
A Party Structure means a Party Wall, but also a floor, partition, or other structure separating buildings or parts of a building approached solely by separate staircases or entrances.
Party wall legislation came about from the damaged caused during the Great Fire of London, where fire spread unchecked from building to building. The London Building Acts were introduced to control the standards and procedures for building, but only within London. The latest version of this, The London Building Acts (Amendment) Act 1939, still controls the building in London, and part of this act deals with the procedures to be adopted for extending or building into party walls.
New legislation, the Party Wall etc. Act 1996, is virtually an exact copy and extended these procedures to the remainder of the country.