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A Party Wall Agreement is the phrase many homeowners use when they need formal permission or statutory protection before carrying out building works that affect a shared wall, boundary, party structure or nearby foundations.
Strictly speaking, the Party Wall etc. Act 1996 deals with notices, consents, disputes and Party Wall Awards. In everyday language, however, “Party Wall Agreement” is often used to describe either:
- written consent from an adjoining owner after a valid Party Wall Notice has been served; or
- a formal Party Wall Award in London prepared by an agreed surveyor or appointed surveyors where consent is not given.
Party Wall Agreement vs Party Wall Award vs Party Wall Notice
This is where many London homeowners get confused. A Party Wall Notice, a neighbour’s written agreement, and a Party Wall Award are connected, but they are not the same thing.
| Term | What it means | When it applies | Relevant service |
|---|---|---|---|
| Party Wall Notice | The formal written notice served on an adjoining owner before notifiable works begin. | Before works to a party wall, building on/near the boundary, or qualifying excavations. | Party Wall Notices London |
| Written consent | The adjoining owner agrees to the notice in writing and does not require surveyor appointments. | Where the neighbour is comfortable with the proposed works after valid notice is served. | Schedule of Condition Surveys |
| Party Wall Award | The formal statutory document prepared by surveyor(s) that authorises how the works are to proceed. | Where the adjoining owner dissents, raises concerns, or does not respond within the required period. | Party Wall Award London |
| Schedule of Condition | A written and photographic record of the adjoining property before works begin. | Strongly recommended whether the neighbour consents or a full Award is prepared. | Schedule of Condition Survey London |
When do you need a Party Wall Agreement?
You may need a Party Wall Agreement, written consent or a Party Wall Award surveyor in London if your planned works fall within the Party Wall etc. Act 1996. Common London examples include loft conversions, rear extensions, basement excavations, chimney breast removals and structural alterations to shared walls.
- Works to a shared party wall or party structure – for example, inserting steel beams for a loft conversion, cutting into a party wall, removing a chimney breast, raising a party wall, or adding structural support. Usually handled by a Section 2 Party Structure Notice. See our Party Wall Structure Survey service.
- Building on or close to the boundary line – such as a new extension wall, garden wall or wall built at the line of junction between properties. Usually handled by a Section 1 Notice. See our Party Wall Boundary Survey service.
- Excavations near a neighbour’s structure – including foundations for rear extensions, side returns, basements and deeper excavations within the relevant 3 metre or 6 metre distances. Usually handled by a Section 6 Notice. See our Party Wall Excavation Survey service.
- Basement works – basement excavations often involve deeper inspections, temporary works, waterproofing interfaces and more detailed Schedule of Condition records. See our Party Wall Survey for Basement Works.
Example: for a terraced-house loft conversion in London, steel beams often need to bear into the party wall. A valid Party Wall Notice should be served before the work begins. If the adjoining owner dissents or does not respond, a Party Wall Award before works begin will normally be required before the notifiable works proceed.
How the process works: from Notice to Agreement or Award
A Party Wall Agreement is not usually the first step. The process normally starts with serving the correct notice on every relevant adjoining owner.
-
Identify the notifiable works
Your surveyor reviews the drawings, foundations, structural proposals and ownership details to confirm whether Section 1, Section 2 or Section 6 notices are required. -
Serve the correct Party Wall Notice
A valid notice is served on the adjoining owner or owners. For help with this step, visit our Party Wall Notice service page. -
The adjoining owner responds
The neighbour can consent, dissent and appoint their own surveyor, dissent and agree to use one agreed surveyor, or fail to respond within the required period. -
If there is consent
A full Party Wall Award may not be needed, but a Schedule of Condition Survey is strongly recommended before works start. -
If there is dissent or no response
A dispute is deemed to have arisen and a Party Wall Award service is required to prepare the formal document that controls how the notifiable works may proceed.
Which Party Wall service do you need?
If you are searching for a Party Wall Agreement, the right service depends on where you are in the process.
I need to notify my neighbour
Start with properly drafted and served notices for your proposed works.
Party Wall NoticesMy neighbour has dissented
You will usually need a formal Party Wall Award agreed by surveyor(s).
Party Wall Award ServiceWe want one impartial surveyor
An agreed surveyor can act impartially for both owners where appropriate.
Agreed Surveyor RoleI am the building owner
We can manage notices, schedules, neighbour communication and Awards for your project.
Building Owner SurveyorI have received a notice
We can advise you on consent, dissent, surveyor appointment and property protection.
Adjoining Owner SurveyorThere is already a dispute
We help resolve party wall disputes clearly, professionally and in accordance with the Act.
Dispute ResolutionWhat happens if you do not have the correct Party Wall Notice, consent or Award?
Starting notifiable works without following the Party Wall process can expose the building owner to unnecessary delay, legal cost and neighbour disputes. The correct paperwork, including a formal Party Wall Award where required, should be dealt with before the notifiable works begin.
- Injunction risk and project stoppage – an adjoining owner may seek legal action to stop works where notice should have been served.
- Delay to the build programme – invalid or missing notices may mean the statutory process has to start again.
- Damage disputes – without a proper Schedule of Condition, it can be harder to separate pre-existing defects from alleged construction damage.
- Higher overall cost – retrospective advice, legal correspondence, redesign, surveyor disputes and remedial works can cost significantly more than dealing with the process properly from the start.
- Strained neighbour relationships – a clear, professional process often helps keep communication calm and neighbourly.
If the Party Wall Agreement, Notice or Award is incorrect
Incorrect paperwork can cause avoidable problems. Common issues include the wrong owner details, missing adjoining owners, incorrect property addresses, unclear works descriptions, incomplete excavation drawings, invalid service dates, or a failure to cover all relevant parts of the Act.
A defective Party Wall Notice may need to be re-served. An unclear Party Wall Award may leave room for arguments about access, working hours, making good damage, temporary protection, security, costs or the precise scope of authorised works.
Using an accredited party wall surveyor helps ensure that the notice, Schedule of Condition and Award are prepared correctly and that both the building owner and adjoining owner understand their rights and responsibilities.
Benefits of using a professional Party Wall Surveyor
- Correct notice strategy – identifying whether Section 1, Section 2, Section 6 or multiple notices are required.
- Clear route to consent or Award – helping homeowners understand whether they need written neighbour consent or a full Party Wall Award.
- Robust Schedule of Condition – a detailed photographic and written record before works begin.
- Dispute prevention – clear communication, properly drafted documents and practical protection measures.
- Time and cost control – reducing the risk of invalid notices, avoidable delays and legal escalation.
- Impartial statutory role – party wall surveyors act under the Act and must administer the process fairly.
Transparent London Party Wall fees
Hourican Associates provide clear Party Wall Surveyor fees for London homeowners, developers and adjoining owners. Fees depend on the property, project size, access requirements and the complexity of the proposed works.
Party Wall Notice Service
£150 + VAT per adjoining owner
- Legally compliant Section 1, Section 2 and Section 6 notices
- Notice preparation, service and proof of delivery
- View Party Wall Notice service
Schedule of Condition
£385–£585 + VAT
- Photographic and written condition record
- Recommended where adjoining owner consent is given
- Basement surveys priced separately due to whole-property detail
- View Schedule of Condition service
Full Party Wall Award
£1,100–£1,500 + VAT
- Notice review, survey, Schedule of Condition and Award process
- Suitable where the adjoining owner dissents or no consent is received
- Fees depend on property and project size
- View Party Wall Award London service
Common London projects that need Party Wall Agreements or Awards
Many London projects involve adjoining properties, shared structures and close foundation lines. The following pages explain how the Party Wall process applies to specific types of work:
Frequently Asked Questions
Not always. Homeowners often say “Party Wall Agreement” when they mean either written consent from a neighbour or a formal Party Wall Award. If the adjoining owner consents to the notice, a full Award may not be needed. If they dissent or do not respond, an Award is normally required.
A Party Wall Notice is the formal document that starts the process. A Party Wall Agreement is the outcome people usually want: either written consent from the adjoining owner or a Party Wall Award prepared by surveyor(s).
If you need to start the process, visit our Party Wall Notice service page.
You usually need a Party Wall Award where notifiable works are proposed and the adjoining owner dissents, raises concerns, or does not provide written consent within the required period.
See our Party Wall Award London service for more detail.
If the adjoining owner gives valid written consent to the Party Wall Notice, a full Award is usually not required. However, a Schedule of Condition is still strongly recommended so both properties are protected if a damage allegation arises later.
See our Schedule of Condition Surveys London service.
A straightforward notice and consent process can be relatively quick. Where an Award is required, the process can take several weeks depending on the number of adjoining owners, access for inspection, drawing quality, project complexity and surveyor availability.
If an Award is likely, speak to a Party Wall Award surveyor in London before your planned start date to reduce the risk of delay.
In most domestic projects, the building owner carrying out the works pays the reasonable party wall surveyor fees, including the cost of preparing an Award where the Award is necessary because of the proposed works.
Yes. Where both owners are comfortable with one impartial surveyor, an agreed surveyor can be appointed to administer the process and prepare the Award. This can often be more efficient than appointing separate surveyors.
Read more about the Agreed Surveyor role.
If you have received a notice, you can consent, dissent and appoint your own surveyor, or agree to use one agreed surveyor. Before responding, it is sensible to understand the proposed works, the likely risk to your property, and whether a Schedule of Condition should be prepared.
Visit our Adjoining Owner Surveyor service for guidance.
Richard Hourican, Company Director
BSc (Hons). HND Build. MCIOB. C.Build E MCABE. ARICS. MFPWS. MPTS
As a specialist Party Wall surveyor, Richard Hourican will protect your interests during building works.
Are you planning a building project – perhaps an extension, loft conversion or basement – that is on or adjacent to your property’s boundary line? Or has a ‘Party Wall’ notice dropped on the doormat informing you of a neighbour’s impending works?
It’s essential to understand all the implications of building plans. If you don’t, it could cost thousands. Our job is to ensure everything is done correctly – and that it doesn’t!
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