What Projects Need a Party Wall Agreement?

Simon Levy Associates • 13 April 2022
Surveyor checking for defects

If you own a property that is conjoined to another, then it is likely that there is a party wall in place. Before any project starts, you must contact the adjoining owner and inform them with a formal written notice. This is usually completed months before work commences. Essentially, a party wall agreement is a document that provides evidence that your neighbour has consented for you to start your construction.

 

It can sometimes be difficult knowing what projects require a party wall, and which ones don’t. Luckily, this guide will help you to distinguish what projects require a party wall agreement. If you’re unsure about how you should approach agreements for your project, it is best to receive party wall advice.

Loft Conversions

If you live in a terraced or semi-detached house, then a party wall agreement will be required for loft conversions. Loft conversions can involve structural changes to shared walls, chimneys and roofs. These changes could potentially damage the adjoining properties, therefore the agreement allows for all parties to be protected.

Extensions

Extensions are usually big projects, creating an entirely new room in your home. However, before starting anything you’ll need to get a party wall set up. Planning an extension can be exciting but if your neighbours don’t consent, then this puts your project to a halt. If you fail to come to an agreement with your neighbour, then you might need a party wall act surveyor to help with the dispute.

Basement

If you’re thinking of adding a basement to your home, then you’ll also need a party wall agreement. Adding a basement is not a small task, meaning that there is always the potential for damage.

Removing Chimney

If your chimney stack is shared with a neighbour, then a party wall agreement will be required. This is because of the amount of structural work that is required surrounding chimney removal. The chimney cannot be removed without permission granted from the neighbours.

 

Are you looking for a company that provides party wall services? Then look no further than Simon Levy Associates. With years of experience under our belt, our party wall advice can guide you through the process every step of the way. We know how complex and intricate the process can be, that’s why our party wall services are here to give you a helping hand when you need it the most. Whether you’re looking to make alterations to your party wall or you’re simply looking for party wall advice, we have got you covered. To find out more about the services we offer, then get in touch with our team today!

23 January 2026
Discover how a chartered surveyor can save you money on property by identifying hidden issues, offering expert valuations, and preventing costly disputes.
23 January 2026
Learn what’s involved in a full building survey, what it covers, and how a chartered surveyor at Simon Levy helps you make informed property decisions.
23 January 2026
Discover why a Level 3 Building Survey is essential for your home purchase. Learn about the process, benefits, and how Simon Levy Associates can help.
13 January 2026
Learn how dilapidation claims, reports, and property surveys ensure fair agreements for tenants and landlords, helping avoid disputes and costly repairs.
18 November 2025
Simon Levy Associates provides expert witness, building construction, and claims consultancy services, helping property managers resolve disputes efficiently.
30 September 2025
Learn how to submit a planning permission appeal, key steps, deadlines, costs, and why expert chartered surveyors’ guidance can improve your chances of success.
30 September 2025
Learn what the 3 metre rule for a party wall means, when it applies, and how to avoid disputes with expert party wall advice from Simon Levy.
2 September 2025
Discover how the team at Simon Levy identifies building defects, offering expert property inspections and tailored solutions in Borehamwood and beyond.
2 September 2025
Explore five key reasons why you should engage a construction defect expert witness from Simon Levy Associates for your property dispute or construction claim.
Builder in high-vis vest and hard hat reviewing plans on construction site
30 July 2025
Discover why hiring a professional advocate for your building insurance claim can save time, reduce stress, and help maximise your property damage payout.