If your project affects a shared wall, involves building at the boundary, or includes excavations near a neighbour’s foundations, the Party Wall etc. Act 1996 is likely to apply. Serving a valid Party Wall Notice early is one of the most effective ways to avoid delay, cost, and neighbour friction.
Simple Survey will look at; When a notice is required, how to serve a valid notice, the key timings, and what happens if your neighbour does not consent.
When is a Party Wall Notice required?
In most domestic projects, notices are required for one (or more) of the following categories:
Works to an existing party wall or party structure
These are commonly Section 2 works, notified using a Section 3 Party Structure Notice. Typical examples include:
- cutting into the party wall to insert beams or supports
- raising, thickening, or otherwise altering the party wall/party structure
Building at the boundary line
This is commonly Section 1 (line of junction) work, such as:
- building a new wall up to the boundary
- proposing a wall astride the boundary (which typically requires the neighbour’s agreement)
Excavations near a neighbour’s structure
These are commonly Section 6 notices, such as:
- excavating within 3 metres of a neighbouring structure where depth is relevant
- excavating within 6 metres in deeper excavation scenarios, depending on depth and proximity
How to serve a valid Party Wall Notice
A valid notice is not just “telling the neighbour”. It is a legal document that must contain the right information, be served on the right people, and be served within the correct timeframe.
Identify the correct adjoining owner(s)
This is where many DIY notices fail. You must serve the correct legal owners, which can include:
- joint owners
- long leaseholders/freeholders (where relevant)
- property-owning companies or landlords (where applicable)
Describe the proposed works clearly
A notice must give the adjoining owner a clear understanding of what you intend to do. In practice, that means:
- a plain description of the works
- the intended start date
- sufficient detail to explain the nature and location of the works
- drawings where appropriate (and particularly helpful for clarity)
Use the correct notice type(s)
Match the notice to the works:
- Section 1 notice for boundary wall/line of junction works
- Section 3 notice where you are exercising Section 2 rights to work on an existing party wall/structure
- Section 6 notice for notifiable excavation
Many projects require more than one notice type.
Serve with sufficient lead time
As a general guide:
- Section 1 and Section 6 notices: typically at least 1 month before the intended start date
- Section 3 notices (for Section 2 works): typically at least 2 months before the intended start date
Keep proof of service
Always keep clear records of:
- what was served
- when it was served
- how it was served
- who it was served on
This matters if timing or validity is later disputed.
Timelines and responses: what happens after notice is served?
The 14-day response period
Once served, the adjoining owner typically has 14 days to reply in writing. They may:
- Consent (agree in writing)
- Dissent (not consent)
- Not respond (commonly treated as a dispute for procedural purposes)
If they dissent (or don’t reply)
Where there is no written consent, the Act’s dispute procedure applies and surveyor(s) are appointed to agree a Party Wall Award. The Award is the formal document that sets out:
- what works may proceed under the Act
- the protections and practical requirements
- how access (if needed) is to be handled
- how the party wall aspects are concluded so the project can proceed lawfully
Common mistakes to avoid
These are the issues that most often cause delay and cost:
- serving the wrong notice type
- serving the notice on the wrong people (or missing an owner)
- vague descriptions of works (for example “structural works” without meaningful detail)
- missing or unclear start dates
- insufficient lead time (trying to fit notices around a contractor’s start date)
- starting notifiable works after dissent without concluding matters through an Award
- assuming silence equals consent (it rarely helps and often escalates matters)
Helpful FAQs
Can I serve the notice myself?
Yes. However, errors are common and often discovered too late—after the programme is fixed. A surveyor-led notice service reduces the risk of invalid notices and re-service.
Who pays the surveyors’ fees?
In many typical domestic situations, the building owner (the party doing the works) pays reasonable fees. Allocation can depend on circumstances and what is being done.
What if my neighbour ignores the notice?
After the response period, the matter is usually treated as a dispute for process purposes and surveyor procedures begin to agree a Party Wall Award.
Can works start before the Award?
If your neighbour consents in writing, notifiable works may proceed once the relevant notice period has elapsed.
If your neighbour dissents (or there is no written consent), you should not start the notifiable works until the party wall matters are properly concluded through the statutory process (commonly via an Award). Starting early can increase the risk of injunctions, claims, and significant delay.
Get Cost Saving Pro Advice Now
If you want your Party Wall Notices handled correctly the first time—clear, valid, properly served, and timed to protect your programme—contact Simple Survey. We keep the process straightforward and cost-controlled, and we aim to be the UK’s cheapest party wall surveyors without compromising professional standards.