Can a party wall surveyor determine the location of a boundary under the Party Wall etc. Act 1996?

The Party Wall etc. Act 1996 is an important piece of legislation which adjudicates in the midst of what are often the competing needs of neighbouring parties. Party wall surveyors are charged with the role of facilitating the exercise of the building owner’s rights while simultaneously safeguarding the interests of the adjoining owner. The Act confers upon the party wall surveyor the power and jurisdiction to properly discharge this role and laid out within the Act are a set of rules and directions that guide the surveyor as to the execution of that role. Nowhere within the four corners of the Act, however, is the party wall surveyor guided as to how to address the discharging of their role in the throes of a dispute between the parties as to the location of the boundary that separates their properties. The difficulty that arises is that much of the Act is predicated upon the location of the boundary being of settled knowledge or agreement. Indeed, knowledge of where the boundary lies goes in many instances to the heart of the operation of the Act. In his roles as third surveyor, the author is often met with referrals from appointed surveyors with differing views as to how to address a party wall matter in an instance in which there is disagreement between the parties as to the location of the boundary. This paper examines the arguments often put by surveyors in such circumstances, examines the extent of the surveyor’s powers in this regard under the Act, considers industry and judicial treatment of the matter, and sets out what is in the author’s view the conclusive position.