Party Wall Party Wall Surveying

BBS Party Wall Services provide simple and cost-effective ways of dealing with building works which impact on Party Walls and adjacent structures for all types of construction projects – whether for individuals, building companies or major nationwide developers.

The Party Wall etc. Act 1996 sets out how such projects are to be managed, whether this is a simple extension to a house, the construction of a large block of flats or development works of any kind. All neighbours have to be informed of your intention to carry out works and usually, their consent is required.

The BBS Party Wall service can take you through the process from beginning to end providing professional advice and the required documents. Our surveyors in this field are Chartered Surveyors and members of the Faculty of Party Wall Surveyors.

The main types of Party Walls are:

  • A wall that stands on the lands of two (or more) owners and forms part of a building – this wall can be part of one building only or separate buildings belonging to different owners.
  • A wall that stands on the lands of two owners but does not form part of a building, such as a garden wall but not including timber fences.
  • A wall that is on one owner’s land but is used by two (or more) owners to separate their buildings.

The Act also uses the expression ‘party structure’. This could be a wall or floor partition or other structure separating buildings or parts of buildings in different ownership, such as in flats. For all these type of works you will need to serve a Party Wall Notice.

If you plan to

  • excavate, or excavate for and construct foundations for a new building or structure, within 3 metres of any part of a neighbouring owner’s building or structure, where any part of that work will go deeper than the neighbour's foundations excavate, or
  • excavate for and construct foundations for a new building or structure, within 6 metres of any part of a neighbouring owner’s building or structure, where any part of that work will meet a line drawn downwards at 45° in the direction of the excavation from the bottom of the neighbour’s foundations,

you must inform the Adjoining Owner or owners by serving a 3m notice or 6m notice.

In addition if you plan to build a party wall or party fence wall astride or against the boundary line, you must inform the Adjoining Owner by serving a notice. However, there is no right to build astride the boundary without your neighbour’s consent in writing.

Request a quote »
Online request form.
Association of Consultant Approved Inspectors RICS
Building Plans


Part of the Stroma Group