What happens if a party wall agreement is broken?
Breaking a party wall agreement can lead to legal action, including injunctions to stop the work and liability for any damages caused. The responsible party may face costly repairs, compensation claims, and delays. To avoid these consequences, it’s important to follow the terms of the agreement and maintain clear communication with all parties involved.
Consequences of Breaking a Party Wall Agreement: Legal and Financial Risks
If a party wall agreement is broken, it can lead to serious consequences for the party responsible for the violation. A party wall agreement, outlined under the Party Wall Act 1996, is a legally binding document that sets out the terms for construction or modifications to a shared wall. If one party fails to adhere to the agreed-upon terms—such as by performing unapproved work, causing damage, or proceeding without proper notification—the affected party can seek legal recourse.
This could include applying for an injunction to halt the work immediately, requiring the responsible party to stop all activities until the agreement is enforced. The violator may also be liable for any damages caused to the neighbour’s property, including the cost of repairs and compensation.
In addition to legal action, breaking a party wall agreement can lead to costly delays and strained relationships with neighbours. If the breach results in damage or safety concerns, the offending party may also be required to cover the cost of appointing a party wall surveyor to assess the situation and recommend remedial action. If the matter escalates to court, it could result in further financial penalties, legal fees, and a potential order to reverse any unapproved work.
To avoid these outcomes, it’s essential to strictly follow the terms set out in the party wall agreement and communicate with all involved parties throughout the construction process.
You are undertaking building works
- Check whether the Party Wall etc Act 1996 applies to your project
- Talk to your neighbours early, before serving Notice about your work. Keeping your Adjoining Owners (neighbours) informed
- Make sure your Notice is served properly, or else it will be invalid
- Serve Notice with plenty of time
- Don’t be tempted to start work until you have an agreement / Party Wall Award in place.
Received a Party Wall Notice? - We can help
- Most Adjoining Owners worry that their property will be damaged by the building works.
- Our role is to try and ensure that this does not happen by looking in detail at the proposals and designs and arranging proper working methods.
- Adjoining Owners are entitled to have their surveyor’s reasonable fees paid by the Building Owner.
- The fees must be both reasonable and justifiable.
Benefits of Hiring a Party Wall Surveyor
Engaging with a Party Wall Surveyor allows you to:
- Prevent delays getting agreements in place
- Receive expert advice
- Prevent legal disputes
- Record the condition of neighbours’ property prior to the works – preventing claims for damage

















