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Securing Planning Permission: A Step-by-Step Guide

Securing planning permission for a home extension project can be a significant hurdle for homeowners. However, with the assistance of professionals like Extension Architecture, the process becomes more manageable.

5 September 2023
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Eugene Kim

Table of Contents

In this article, we will provide a step-by-step guide to help homeowners understand the essential stages involved in securing planning permission for their extension project, with the assistance of Extension Architecture specialists.

Step 1: Initial Consultation with Extension Architecture

Before commencing the planning permission process, it is crucial to engage with Extension Architecture, a leading firm specializing in extension design and planning services. Our team of highly skilled architects will discuss your project requirements, evaluate your property’s feasibility, and guide you through the planning process from beginning to end.

Step 2: Feasibility Study and Site Assessment

Extension Architecture will conduct a comprehensive feasibility study and site assessment to determine the viability of your project. This assessment includes analyzing the site’s constraints and opportunities, such as existing structures, neighboring properties, building lines, and any statutory restrictions. This assessment provides vital information that helps shape the design and ensures compliance with planning regulations.

Step 3: Design Concept and Pre-application Advice
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Based on the feasibility study, our architects will work closely with you to create a design concept that fulfills your vision while adhering to planning regulations. Before submitting a formal planning application, seeking pre-application advice from the local planning authority is highly recommended. Extension Architecture will assist you in this process, presenting your design concept and receiving valuable feedback that helps refine your plans.

Step 4: Planning Application Preparation

Once all necessary adjustments to the design have been made, Extension Architecture will prepare the planning application documents for submission. Our team of experts will meticulously compile architectural drawings, site plans, design statements, and any additional supporting documents required for your specific project. This step ensures that your application is complete and meets the necessary standards.

Step 5: Local Planning Authority Submission

Extension Architecture will submit the planning application package to the local planning authority on your behalf. To ensure a smooth process, our team will handle all communication with the authority, follow up on any additional information required, and act as a liaison between you and the planning authority during the decision-making stage. We will keep you informed throughout the process.

Step 6: Planning Permission Decision

After the submission, the local planning authority will review the application, taking into account factors such as compliance with planning policies, environmental impact, and neighborhood considerations. The decision-making process typically takes 8-13 weeks. Extension Architecture will inform you promptly about the authority’s decision. If planning permission is granted, we will proceed to the next steps. In case of refusal, we will assist you in understanding the reasons cited and explore any necessary amendments or appeals.

Step 7: Construction and Building Regulations

Upon securing planning permission, the focus shifts to the technical aspects of the project. Extension Architecture will guide you through the process of obtaining building regulations approval, ensuring that your extension complies with structural and safety requirements. We will work closely with you and any other necessary professionals to ensure a seamless transition from planning construction permission.


Securing planning permission for a home extension project may seem challenging, but working with experts like Extension Architecture can simplify the process. Our step-by-step guide, starting from the initial consultation to the construction phase, enables homeowners to navigate the planning permission process effectively. With our expertise and support, you can turn your vision of an extended home into a reality while complying with planning regulations and building a beautiful, functional space.

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Eugene Kim

Eugene Kim, Founder and Managing Director of Extension Architecture, has led the firm for over 14 years, consistently delivering quality solutions. His dedication has been key to the company's growth and success.

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