What is a Section 3 Party Wall Notice?

Section 3: Party Wall Notice Basics

Section 3 of the Party Wall Act relates to works involving existing party walls or structures that already form part of the boundary between properties. These include repairs, alterations, or any other works that could affect the structural integrity or use of the wall. Examples include removing or cutting into a party wall to insert steel beams or raising the height of the wall. Any changes that may damage or alter the wall require formal notification to the adjoining owner.

The building owner must serve a Party Structure Notice under Section 3, which must be issued at least two months before the work begins. This notice must describe the proposed works in detail, including specifications, plans, and the expected start date. The adjoining owner has 14 days to consent or object. If they object or fail to respond, a dispute is declared, and both parties must appoint a surveyor to resolve the matter, often by drawing up a Party Wall Award. This award outlines the rights and responsibilities of each party and ensures the adjoining owner’s property is protected during the work. Section 3 ensures that all works on existing party walls are carried out safely, fairly, and with minimal disruption to neighbouring properties.