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Party Wall Surveyors

A practical guide to party wall surveyors, party wall notices and neighbour procedures for extensions, loft conversions, structural alterations, excavations and home improvement projects.

Party wall matters are one of the areas homeowners often discover later than they should. A project may already have planning permission, drawings, a builder and a proposed start date before anyone asks whether the neighbours need to be served with party wall notices.

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That can create delays, disputes and unnecessary stress.

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The Party Wall etc. Act 1996 is separate from planning permission and Building Regulations. A project can have planning approval and still need party wall notices. A project can be permitted development and still need party wall notices. A project can be structurally sound and still need to follow the party wall procedure.

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For homeowners planning extensions, loft conversions, garage conversions, basement works, chimney breast removals, structural openings or excavations close to neighbouring property, party wall advice should be considered early.

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Quick Answer

 

A party wall surveyor helps deal with works covered by the Party Wall etc. Act 1996. This may include work to a shared wall, work on or near a boundary, building a new wall at the line of junction, cutting into a party wall, removing chimney breasts, inserting beams, raising or thickening a party wall, or excavating close to a neighbouring building.

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If the adjoining owner consents to the notice, a party wall award may not be needed. If the adjoining owner dissents or does not respond, a dispute is deemed to have arisen and surveyor appointments are usually required.

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A party wall award sets out how the notifiable works may be carried out, the protections required, access arrangements, working methods and responsibilities if damage occurs.

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When might a party wall surveyor be needed?

 

A party wall surveyor may be needed when proposed building works affect a shared wall, boundary wall, party structure or excavation close to a neighbouring building.

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Many homeowners assume party wall matters only apply to major projects. In reality, the Act can apply to common residential works, especially in terraced and semi-detached houses.

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Party wall matters may be relevant for:

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  • rear extensions;

  • side-return extensions;

  • wraparound extensions;

  • loft conversions;

  • dormer construction;

  • steel beams inserted into party walls;

  • chimney breast removals;

  • cutting pockets into a shared wall;

  • raising a party wall;

  • underpinning;

  • basement works;

  • excavations for foundations near neighbouring buildings;

  • building a new wall on or near the boundary;

  • garage conversions where boundary walls or excavations are affected;

  • structural alterations close to adjoining property.

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Not every project needs a party wall surveyor, but many projects need the position checked.

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Party wall matters and extensions

 

Extensions often involve excavation for new foundations close to a neighbouring property. Even if the extension is entirely on the homeowner’s own land, party wall procedures may still apply if the excavation is close enough to the adjoining owner’s building or structure and deeper than their foundations.

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Side-return extensions are a common example. They often involve new walls along or near the boundary and foundation excavations close to the neighbour’s property.

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Party wall matters and loft conversions

 

Loft conversions often involve structural steel beams, padstones, dormers, raising or altering party walls, and works close to neighbouring roofs.

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In terraced and semi-detached homes, loft conversions frequently require party wall notices because structural elements may need to bear into, or be connected near, a shared wall.

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Party wall matters and chimney breast removal

 

Removing a chimney breast from a party wall can be party wall work. It may also need structural design, Building Regulations approval and careful consideration of the remaining chimney stack or neighbouring fireplace structure.

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This is not something homeowners should treat as simple internal work without checking the party wall and structural position.

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Party wall matters and excavations

 

Excavations near neighbouring buildings can trigger the Act, even where no physical work is being carried out to the neighbour’s wall.

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This is common with extensions, basements, some outbuildings and structural foundation works.

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TOP TIP

Check the party wall position before agreeing a build start date. If notices or surveyor appointments are needed, leaving it until the last minute can delay the project and put pressure on neighbour relationships.

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What does a party wall surveyor do?


A party wall surveyor acts under the Party Wall etc. Act 1996 where the Act applies and a dispute has arisen or is deemed to have arisen.
 

The surveyor’s role is not the same as the architect, builder or structural engineer. A party wall surveyor deals with the statutory procedure between neighbouring owners.
 

Depending on the project, the party wall surveyor may help with:
 

  • reviewing the proposed works;

  • checking whether the Act may apply;

  • preparing or advising on party wall notices;

  • identifying adjoining owners;

  • arranging schedules of condition;

  • agreeing surveyor appointments;

  • preparing a party wall award;

  • agreeing working methods;

  • dealing with access arrangements;

  • considering protection to adjoining property;

  • recording the condition of neighbouring property before work starts;

  • dealing with damage issues if they arise;

  • helping avoid or resolve disputes.

     

What is a party wall notice?


A party wall notice is a formal written notice served on an adjoining owner before certain works are carried out.
 

The notice should describe the proposed works and be served in the correct form and timescale. Different types of work may require different notices.
 

A friendly conversation with the neighbour is useful, but it is not a substitute for the correct notice where the Act applies.

 

What happens after a notice is served?


The adjoining owner can usually respond in one of three ways:
 

  • consent to the works;

  • dissent and agree to use one agreed surveyor;

  • dissent and appoint their own surveyor.
     

If the adjoining owner does not respond within the required time, a dispute may be deemed to have arisen and the party wall surveyor process may need to continue.

 

What is an agreed surveyor?


An agreed surveyor is one surveyor appointed by both owners.
 

This can sometimes keep matters simpler and more cost-effective where both owners are comfortable using the same surveyor.
 

The agreed surveyor does not act as the homeowner’s private representative. The surveyor’s role is to act impartially under the Act.

 

What happens if each owner appoints a surveyor?


If each owner appoints their own surveyor, the two surveyors will usually select a third surveyor and agree the party wall award between them.
 

The third surveyor may become involved if the appointed surveyors cannot agree or if certain disputes need determination.

 

What is a schedule of condition?


A schedule of condition is a record of the neighbouring property’s relevant condition before work starts.
 

It may include photographs and written notes showing cracks, finishes, walls, ceilings, external areas and other relevant features.
 

This can help protect both sides. If damage is later alleged, the schedule provides a record of what was already present before the works began.

 

IMPORTANT POINT

Party wall surveyors are not appointed to stop reasonable building work. Their role is to administer the Act, protect adjoining owners from unnecessary risk and allow notifiable works to proceed under a proper legal procedure.

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How should homeowners handle party wall matters?


Party wall matters are best handled early, calmly and professionally.
 

A homeowner planning building work should not treat party wall notices as a hostile act. The notice procedure is there to avoid disputes, not create them. Many neighbour problems begin because the adjoining owner first hears about the work from builders arriving on site.

 

Speak to neighbours early


It is usually sensible to speak to neighbours before notices arrive.
 

A simple conversation can make a big difference. Homeowners can explain what they are planning, when they hope to start, what the work involves and that formal notices may follow if required.
 

This does not remove the need for proper notices, but it can reduce surprise and anxiety.

 

Get the right information ready


Party wall advice is easier when the project information is clear.
 

Useful information may include:
 

  • existing and proposed drawings;

  • structural drawings or calculations;

  • foundation details;

  • excavation depths;

  • sections through proposed foundations;

  • construction method;

  • start date expectations;

  • neighbour property information;

  • ownership details;

  • access requirements.
     

For extensions and loft conversions, party wall surveyors often need enough technical information to understand exactly what works are proposed.

 

Do not confuse planning permission with party wall approval


Planning permission and party wall procedures are different.
 

Planning permission deals with whether the development is acceptable in planning terms.
 

Building Regulations deal with technical compliance, structure, fire safety, insulation, drainage and other building standards.
 

Party wall procedures deal with certain works affecting shared walls, boundaries and nearby excavations.
 

One does not automatically replace the other.

 

Who normally pays the party wall surveyor?


Where the works are being carried out for the benefit of the building owner, the building owner will usually be responsible for reasonable party wall surveyor fees.
 

This may include the adjoining owner’s surveyor fees where the adjoining owner dissents and appoints their own surveyor.
 

However, fees should be reasonable and proportionate to the work involved.

 

Can a homeowner serve notices themselves?


A homeowner can sometimes serve party wall notices themselves, but mistakes can cause delay.
 

Problems can arise if the wrong notice is served, the wrong owner is notified, the notice period is wrong, the plans are unclear, the work description is insufficient or the notice is invalid.
 

For simple projects, some homeowners may be comfortable serving notices themselves. For extensions, loft conversions, boundary works, excavations or neighbour-sensitive projects, many homeowners prefer professional help.

 

What happens if work starts without notices?


Starting notifiable work without following the party wall procedure can create serious problems.
 

The adjoining owner may seek to stop the work, disputes may escalate, and the homeowner may lose some of the protection the party wall process is designed to provide.
 

If party wall matters have been missed, advice should be taken quickly before the work progresses further.

 

Party Wall Surveyor Checklist


Before starting work, think about:
 

  • whether the project affects a shared wall;

  • whether work is proposed on or near the boundary;

  • whether new foundations are close to neighbouring buildings;

  • whether excavation will be deeper than neighbouring foundations;

  • whether steel beams will be inserted into a party wall;

  • whether a chimney breast is being removed;

  • whether a loft conversion affects a party wall;

  • whether neighbours have been spoken to informally;

  • whether the correct notices are needed;

  • whether the adjoining owners have been correctly identified;

  • whether drawings and structural details are available;

  • whether a schedule of condition is advisable;

  • whether surveyor appointments may be needed;

  • whether the programme allows enough time for the process;

  • whether party wall costs have been included in the project budget.

     

Frequently Asked Questions About Party Wall Surveyors
 

What is a party wall surveyor?

A party wall surveyor is a person appointed under the Party Wall etc. Act 1996 to deal with disputes or deemed disputes between neighbouring owners where notifiable works are proposed.
 

When do I need a party wall surveyor?

You may need a party wall surveyor if your neighbour dissents to a party wall notice, does not respond, or if the proposed work needs to be dealt with formally under the Act.
 

Do I need a party wall surveyor for an extension?

You may need party wall notices and possibly a party wall surveyor if the extension involves building on or near a boundary, excavating close to neighbouring buildings or affecting a shared wall.
 

Do I need a party wall surveyor for a loft conversion?

Many loft conversions in terraced or semi-detached homes require party wall notices because of steel beams, structural work and works to or near party walls.
 

Do I need a party wall surveyor if I have planning permission?

Planning permission does not remove party wall obligations. Planning, Building Regulations and party wall procedures are separate.
 

Can my neighbour stop my building work under the Party Wall Act?

The Act is not designed to let neighbours stop lawful works simply because they dislike them. It provides a process for notifying, agreeing and controlling how certain works are carried out.
 

What is a party wall award?

A party wall award is a legal document prepared by the surveyor or surveyors. It sets out what work may be carried out, how and when it may be carried out, and the protections or conditions that apply.
 

What is a schedule of condition?

A schedule of condition records the relevant condition of the adjoining owner’s property before work starts. It can help resolve later arguments about whether damage was pre-existing or caused by the works.
 

Who pays party wall surveyor fees?

The building owner carrying out the works will usually pay the reasonable surveyor fees where the work is for their benefit. The position can vary where works benefit both owners or where additional matters arise.
 

Can I use one surveyor for both sides?

Yes, both owners can appoint one agreed surveyor if they are comfortable doing so. The agreed surveyor must act impartially under the Act.
 

Can I act as my own party wall surveyor?

If a dispute has arisen, the building owner cannot act as their own surveyor. A surveyor must be appointed under the Act.
 

What happens if my neighbour ignores the notice?

If the adjoining owner does not respond within the required period, a dispute may be deemed to have arisen and the surveyor process may need to continue.
 

Is a party wall agreement the same as a party wall award?

People often use the phrase “party wall agreement” generally. A party wall award is the formal legal document made by the surveyor or surveyors where there is a dispute or deemed dispute under the Act.
 

Should I deal with party wall matters before appointing a builder?

It is often sensible to check party wall requirements before confirming a build start date. Builders may need to know whether notices, awards or access arrangements are in place before work begins.
 

Need Party Wall Support?

APN Home helps homeowners understand the type of support they may need for home improvement projects, including extensions, loft conversions, garage conversions, structural alterations, chimney breast removals, basement works and works near neighbouring property.
 

If your project may involve a shared wall, boundary work or excavations close to a neighbour, it is worth checking the party wall position early so the correct process can be followed before work starts.
 

Tell us about your project and APN Home can help you understand the next sensible step.

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Contact Details

 

APN Home Limited
167–169 Great Portland Street
London
W1W 5PF

Tel: 0370 042 2021
Email: team@apnhome.co.uk

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