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Do you need permission?

Find out whether your project needs planning permission or building regulations approval - Use our common projects1 advice and interactive house to find out about permitted development limits or explore our in-depth guidance to understand about what you need to consider at each stage of your project.

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Get guidance from a qualified planner with a quick phone call. Learn what planning approval you may need, whether it's a home extension or more extensive changes to your property. Get your application started with confidence. 

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Planning application guidance and support: Ready to make an application?

Planning Portal is more than a place to submit a planning application. Built to support your end-to-end planning journey, our digital platform provides guidance and tools to help you understand what's possible, prepare your application, reduce common errors, and submit with confidence:

  • Discover the planning potential, constraints and likely requirements for a particular property and the nearby area
  • Understand what you need to provide with clear guidance at each step of the application process
  • Describe your proposal more clearly with AI-assisted guidance
  • Identify relevant site constraints and any required documentation
  • Add and tag supporting documents more easily with improved document guidance
  • Include Community Infrastructure Levy (CIL) information as part of your application
  • Connect your planning and building control applications seamlessly
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  1. https://www.planningportal.co.uk/permission/common-projects
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Home improvement projects

Do you want to create more space in your home, make it more energy efficient or perhaps you are looking to self-build? Whether your project is large or small, the Planning Portal's common projects and interactive guidance can help you to plan and take the next steps to begin your building work.

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      Commercial or residential developments

      Whether you are planning a large scale commercial project, submitting an application on behalf of a client or changing the use of a building, our comprehensive guidance about planning and building regulations can help you to remain compliant throughout the projects life-cycle; helping you to deliver on time and in budget.

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          Common projects

          Use our guides or the links in our common projects table to find guidance on the building work you have in mind.


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              Interactive guides

              Our guides provide visual clarification of the permitted development rules for specific projects.



                  Interactive and mini guides
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                  Your responsibilities

                  Learn about considerations before you start work and other permissions you may require.



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                      What to do next

                      Browse our guidance covering lawful development certificates and other permissions you may require before you start building work.

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                          The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Ministry of Housing, Communities & Local Government (MHCLG). All content © 2026 Planning Portal.

                          The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Ministry of Housing, Communities & Local Government (MHCLG). All content © 2026 Planning Portal.