House Extension

If you're planning to build an extension on your property, it's crucial to understand the legal requirements and obligations related to party walls. The Party Wall etc. Act 1996 sets out the guidelines for construction projects that may affect shared walls between neighbouring properties. In this blog, Icon Surveyors, a trusted authority in party wall matters, provides expert insights into the question: "Can I build an extension without a party wall agreement?" We'll explore the importance of party wall agreements, the potential consequences of proceeding without one, and how to navigate the process successfully.

1. Understanding the Party Wall etc. Act 1996:

- Overview of the Party Wall etc. Act 1996 and its purpose in resolving disputes between neighbours.

- Explanation of party walls, their definition, and their relevance to construction projects.

- Key provisions of the Act and the legal obligations it imposes on property owners.

2. The Role of Party Wall Agreements:

- Comprehensive explanation of party wall agreements and their significance in construction projects.

- Highlighting the purpose of a party wall agreement in protecting the interests of all parties involved.

- Discussing the importance of obtaining the agreement before commencing any work on shared walls.

3. Types of Extensions Requiring Party Wall Agreements:

- Identifying different types of extensions that typically require a party wall agreement, such as rear extensions, loft conversions, or basement excavations.

- Discussing specific scenarios and circumstances where party wall agreements are necessary.

4. Consequences of Proceeding Without a Party Wall Agreement:

- Exploring the potential risks and consequences of building an extension without a party wall agreement.

- Legal implications and potential disputes that may arise with neighbouring property owners.

- Financial liabilities and potential delays due to legal action.

5. Navigating the Party Wall Agreement Process:

- Step-by-step guide to obtaining a party wall agreement, including serving notices, appointing party wall surveyors, and negotiating with neighbouring property owners.

- Role of a qualified party wall surveyor in assisting with the process and ensuring compliance with the Act.

- Addressing common concerns and misconceptions related to party wall agreements.

6. Seeking Professional Advice:

- Importance of consulting with experienced party wall surveyors like Icon Surveyors for expert guidance and assistance.

- Benefits of engaging a professional surveyor to handle the party wall agreement process.

- How a party wall surveyor can help resolve disputes, issue party wall awards, and protect your interests.


Building an extension without a party wall agreement can lead to potential legal complications, disputes, and delays. It is essential to understand the requirements of the Party Wall etc. Act 1996 and the importance of obtaining a party wall agreement before proceeding with construction. Icon Surveyors, with their expertise and experience in party wall matters, can provide the necessary guidance and assistance throughout the process. Contact us today to ensure a smooth and legally compliant extension project, protecting your interests and maintaining positive relationships with your neighbours.

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Icon Surveyors

We are a team of party wall surveying experts based throughout London and the surrounding areas. Here, we share informative property survey blogs created by industry experts.



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