What is a Section 1 Party Wall Notice?

Section 1: Party Wall Act Basics

Section 1 of the Party Wall Act 1996 addresses the construction of a new wall along the boundary line between two properties, referred to as a “line of junction.” This applies in two situations: when a wall is being built entirely on the developer’s land but adjacent to the boundary, or when it straddles the boundary and is considered a party wall. If the wall is constructed on the developer’s land alone, no consent from the neighbour is required, though notice must still be served. However, for a wall that will sit astride the boundary, the adjoining owner’s consent is mandatory.

To proceed, the building owner must serve a Section 1 notice at least one month before work begins. This notice should outline the planned works, including dimensions, materials, and location. If the adjoining owner does not respond or objects, a dispute arises, and a Party Wall Surveyor may need to be appointed to mediate and agree on terms. Without consent, a wall that crosses the boundary cannot be built. This ensures the adjoining property owner’s rights are protected during the process.