What is a party wall notice?
When planning building work near a shared wall or boundary, you must serve a Party Wall Notice. It involves a formal, legal process, but it’s not as complicated as many homeowners might initially think, especially when a Party Wall Surveyor is involved. However, taking the time to understand what it is and when you need one can save you time, stress and costly disputes later down the line – trust us.
Short answer: A Party Wall Notice is a formal written document you must give your neighbour before starting building work that affects a shared wall, boundary or their foundations. It informs them of your plans and triggers the legal process under the Party Wall etc. Act 1996.
Breaking it down
A Party Wall Notice is a legal notice served by the homeowner (or their Party Wall Surveyor) to any neighbours who may be affected by proposed building work. Party Wall Surveyor Cost Guide.
It’s like giving your neighbour a heads-up, but legally – and it’s not optional. You’re required by law to serve the notice before you begin certain types of construction work.

Why a Party Wall Notice will be necessary
The Party Wall Notice is designed to protect both you and your neighbour’s assets by:
- Making your plans clear
- Giving them time to ask questions or appoint a surveyor
- Ensuring all work is carried out safely
- Putting legal protection in place if damage occurs
- Preventing disputes by keeping the process transparent
Without the proper notice, you may not be legally allowed to start work. If you’ve started work without serving a notice, in serious cases, a court can order the work to be stopped, altered, or even pulled down, costing you time and money, so it’s important to go through the proper channels and follow the correct protocols.
The exact times you need to serve a Party Wall Notice
You must serve a Party Wall Notice when your project involves:
- Work on a shared (party) wall, such as cutting in steel beams, removing a chimney breast, or raising the wall.
- Building on or up to the boundary line, like building new extensions or boundary walls.
- Excavating close to a neighbour’s foundations for extensions, basements or deeper drainage works.
If you’re unsure, a Party Wall Surveyor can confirm whether your planned works fall under the Act.

The information your Party Wall Notice must include:
A valid Party Wall Notice needs to include:
- Your name and address
- A description of the proposed work
- The planned start date
- Drawings where appropriate
- A clear reference to the Party Wall etc. Act 1996
If any of this is missing, the notice can be considered invalid, causing delays.
What happens once a Notice has been served
Your neighbour has 14 days to respond. They can:
- Consent: They agree to the work. No further action is needed, though you may still want a Schedule of Condition (recommended).
- Dissent: They want a Party Wall Surveyor involved. This triggers the Party Wall Award process.
- Do nothing: After 14 days, this is treated as dissent, and surveyors must be appointed.
This process ensures all work is carried out safely and legally.
Planning work in Surrey or London? Request a quote for serving your Party Wall Notice.
Party Wall Notice vs Party Wall Agreement
A Party Wall Notice is not the same as a Party Wall Agreement – they’re two separate parts of the process.
- The Notice is the document you serve at the start.
- The Agreement (Party Wall Award) is the legally binding document prepared if your neighbour dissents.
A Party Wall Notice is simply the first step in the Party Wall Act process: a formal way to inform your neighbour of your plans and protect both properties. It’s not designed to cause conflict; it’s designed to prevent it. But if a conflict arises and you live in Surrey or London, Westville Associates can help.
Next Step
If you would like to talk to Simon about your party wall, then please contact him here or simply call 07834 761 411. We cover all of Surrey, Hampshire and London.






