The Party Wall etc. Act 1996 is a statute that sets out a clear process for carrying out certain building works close to, on, or affecting neighbouring properties. Its main aim is to reduce conflict and provide a structured route to agreement when construction could impact shared walls, boundary structures, or nearby foundations.
It applies to homes and commercial buildings and is most relevant where work is close enough to a neighbour that it could affect their property, stability, or enjoyment.
1) What sorts of work does the Act cover?
The Act generally comes into play in three broad categories:
A) Works to a shared wall or shared structure
This includes alterations to a wall you share with a neighbour (for example in terraced and semi-detached houses), and also certain shared parts of buildings such as floors/ceilings between flats.
Typical examples:
- cutting into a party wall to insert beams (e.g., for loft conversions)
- raising, thickening, repairing, or partially demolishing a party wall
- removing chimneys breast structures attached to a shared wall (where relevant)
B) Building at the boundary (the “line of junction”)
This includes building a new wall right on the boundary line or close enough to the boundary that it affects how the boundary is used.
Typical examples:
- building a new wall up to the boundary
- building a wall astride the boundary line (with consent)
C) Excavations near neighbouring buildings
If you dig foundations close enough to a neighbour’s structure, and deep enough to potentially influence their foundations, the Act may apply.
Typical examples:
- excavating for an extension near a neighbour’s house
- digging for deeper foundations or underpinning close to the boundary
- basement-related excavation (where relevant)
2) Key terms in plain English
What is a “party wall”?
A party wall is usually a wall that forms part of a building and stands on land belonging to two owners, or a wall that separates two buildings and is shared (for example, the dividing wall between terraced houses).
What is a “party structure”?
This can include shared structures such as:
- floors and ceilings between flats
- other shared structural elements within a building
Who are “adjoining owners”?
An adjoining owner is not just the person next door. It can include:
- freeholders
- leaseholders (depending on lease length/interest)
- owners of neighbouring buildings that might be affected by the works
3) The notice process: what building owners must do
If your works fall within the Act, you must serve a Party Wall Notice on all relevant adjoining owners. The notice should clearly describe:
- what you intend to do
- where you intend to do it
- when you plan to start
- the drawings / plans that explain the works
The Act sets minimum notice periods for different types of work. In practice, many projects require notice well in advance so neighbours have time to consider the proposals properly.
Why notices matter: they are the formal trigger that starts the Act’s process and protects both sides by making the scope clear.
4) What happens after a notice is served?
Once the adjoining owner receives the notice, they typically have three practical options:
A) Consent in writing
If they provide written consent, the works can generally proceed without the Act’s dispute procedure being used at that stage.
Even where consent is given, it’s still wise to protect both parties by recording condition (more on this below).
B) Dissent (object)
If they dissent, a dispute is treated as having arisen under the Act and the Section 10 surveyor procedure applies (explained below).
C) No reply
If there is no response within the required timescale, the Act treats this as a dissent in most situations, meaning the dispute resolution route begins.
5) Section 10: the dispute resolution route (where surveyors come in)
If a dispute arises (or is deemed to arise), Section 10 provides a structured mechanism:
- Agreed Surveyor route: both owners jointly appoint one surveyor who acts impartially, or
- Two surveyor route: each owner appoints their own surveyor, and those surveyors select a Third Surveyor as a safeguard
The surveyor(s) then usually produce a Party Wall Award — a legally binding document that sets out:
- the scope of work permitted under the Act
- how the work must be carried out
- working practices and protective measures
- access arrangements (if necessary)
- procedures for dealing with damage
- who pays which costs (where relevant)
6) Why a Party Wall Award is valuable
A Party Wall Award is not there to block works — it is there to make sure the works happen safely, fairly, and predictably. It reduces risk by:
- documenting the agreed method and safeguards
- setting a clear process for damage and making good
- avoiding informal arguments mid-project
- giving both sides a clear reference point if concerns arise
7) Recording condition: why it matters even if the neighbour consents
Whether the neighbour consents or surveyors are appointed, one of the most practical protections is a Schedule of Condition — a photographic and written record of the adjoining property’s condition before works begin.
This helps because:
- it reduces disputes about whether cracks were pre-existing
- it allows damage claims to be handled fairly
- it encourages calmer discussions if concerns arise mid-works
Advice for Building Owners
If you are carrying out the works, the priority is to follow the Act properly and keep the relationship with your neighbour steady.
1) Confirm whether the Act applies early
Don’t leave it until builders are ready to start. Early clarity prevents delay and protects your programme.
2) Serve clear notices with the right information
Provide enough detail (including drawings) so neighbours can make an informed decision. Vague notices create anxiety and often lead to dissent.
3) Expect questions and be prepared to explain the proposals
Neighbours are more likely to consent when they understand:
- what is happening
- how long it will take
- what safeguards are in place
4) Be ready for dissent and the surveyor process
Dissent is not necessarily hostility — many neighbours dissent simply because they want the protections of an Award.
5) Minimise disruption and manage the site professionally
Noise, dust, access and timing often trigger disputes more than the legal process itself.
6) Document condition and follow the agreed process
Whether consent or an Award applies, keep records and deal with concerns quickly.
7) Understand costs
In most typical situations, the building owner pays:
- the cost of the notifiable works
- surveyors’ costs where a dispute route applies
- repairs for damage caused by the works (or compensation, where appropriate)
There are exceptions, particularly where the adjoining owner later benefits from work, but the usual starting point is that the person doing the work funds the process.
Advice for Adjoining Owners
If you’ve received a Party Wall Notice, your focus should be on understanding the works and ensuring your property is protected.
1) Read the notice carefully and check the drawings
Make sure you understand:
- the type of work
- the location and depth of excavation (if applicable)
- the likely duration and disruption
2) Respond within the time period
You can:
- consent in writing, or
- dissent and request the surveyor process, or
- discuss changes to the proposal before responding
3) Remember: dissent is not “being difficult”
Dissent is simply a way of ensuring the works proceed under a legally structured process with clear protections.
4) Make sure condition is recorded
A Schedule of Condition is often the most practical protection you can have.
5) Understand access
If access is required, it should be managed properly and with notice. Access is not unlimited; it must be reasonable and linked to the notifiable works.
6) If damage occurs, there is a process
Where surveyors are involved, the Award usually sets out how damage is:
- assessed
- agreed
- repaired or compensated
Even if you consented, you should document issues quickly and keep communication in writing.
Quick checklists
Building owners
- Confirm the Act applies
- Serve clear notice(s) with drawings
- Allow time for response
- Record condition before starting
- Follow consent terms or the Award
- Keep neighbours informed and manage disruption
Adjoining owners
- Review the notice and drawings
- Respond in time
- Consider a Schedule of Condition
- Use the surveyor route if you want formal protection
- Keep records and raise concerns early
Need practical Party Wall advice?
Email mail@howorth.uk or call 07794 400 212. Let us know what works you’re planning (or what notice you’ve received), the property type (house/flat), and whether you are the building owner or adjoining owner. We’ll help you understand the correct process and the most practical next step.