Navigating the Party Wall etc. Act 1996 can be a challenge, especially for those taking on building work for the first time. Increasingly, we’re seeing homeowners attempt to serve their own notices, only to find out later that they’re invalid — causing unnecessary delays and complications.
To help you avoid common mistakes, we’ve put together a straightforward guide to what makes a valid Party Wall Notice under the Act.
What Is a Party Structure Notice?
If you live in a semi-detached or terraced home, you’ll likely share a wall with your neighbour — known as a party wall. If your planned works affect this shared structure (for example, inserting steel beams for a loft conversion, raising the wall, or underpinning for a basement), you’ll need to serve a Party Structure Notice.
Important: You cannot start work until a valid notice has been served and any necessary agreements have been reached.
What Makes It Valid?
The Party Wall Act sets out strict requirements for what must be included. While the details are legally defined under Sections 2 and 3 of the Act, in simple terms, a valid Party Structure Notice must include:
- The full name and address of the Building Owner (you)
- The name and address of the Adjoining Owner (your neighbour)
- A clear description of the intended work
- The date you plan to start the work
- Confirmation that work will not begin until at least two months after serving the notice
Contrary to popular belief, drawings are not required to make the notice valid, although they may help with clarity.
Adjacent Excavation Notice
If you’re not sharing a party wall but are digging within 3 metres of a neighbour’s building — and your excavation is deeper than their foundations — you’ll need to serve an Adjacent Excavation Notice under Section 6 of the Act. This also applies if you’re installing deep foundations within 6 metres, such as piles.
Key Requirements:
You must serve this notice at least one month before starting the work. Unlike a Party Structure Notice, it must include supporting documentation:
- A site plan (preferably showing neighbouring properties)
- A section drawing showing the depth and position of your excavation
Though the Act provides fewer specific wording requirements for this type of notice, it’s critical to get the technical details right.
Why It’s Worth Getting Professional Help
Serving your own notices might seem like a good way to save money — until you realise weeks later that the paperwork is invalid and your project is on hold.
Engaging a qualified Party Wall Surveyor from the outset ensures your notice meets all legal requirements, minimises the risk of disputes, and keeps your build on track.
Need Help?
If you’re planning building work and want to make sure your Party Wall Notice is valid from day one, we’re here to help. Whether you’re a homeowner or contractor, our experienced surveyors can guide you through the process — quickly, clearly, and with no unnecessary delays.
📩 Email us today at team@simplesurvey.co.uk for expert advice or to get started.