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What permission is required to build a lean-to at the side of my house?

Whether a lean-to requires planning permission will depend on what the lean-to is used for, it may be an extension, pergola, carport, conservatory or gazebo.

In some cases a building a lean-to will be classified as permitted development, meaning an application for planning permission is not required provided specified limits and conditions are met. If these are exceeded, then you must apply for planning permission.

Permitted development rules vary based on the type of work you are completing, visit our Mini Guides for details on the specific rules.

If you live in a listed building, you will need listed building consent for any significant changes.

Common Questions

What happens if I build without planning permission?

If you carry out development without the necessary planning permission, and it doesn’t fall within permitted development rights, you may be in breach of the planning rules. In such cases, you will usually need to submit a retrospective planning application to seek approval for the work already completed or started. However, there is no guarantee that permission will be granted.  

Learn more about planning breaches on Planning Portal  

What is a lawful development certificate (LDC)?

If you want formal confirmation that the existing use of a building is lawful for planning purposes, or that your proposed development does not require planning permission, you can apply for a Lawful Development Certificate(LDC). An LDC can be useful in situations where you need assurance that a particular use, operation, or development is lawful under planning legislation.

Read more about Lawful Development Certificates.

Applications for a Lawful Development Certificate can be submitted online to your local council using Planning Portal. You must include enough detail and evidence to support your case; if the information is insufficient, your application may be refused.

Apply online

Can I install patio doors to the rear of my house where there is currently a single external door?

Installing patio doors at the rear of your house is likely to fall under permitted development rights, meaning an application for planning permission is not required, provided certain limits and conditions are met.

The doors should be of similar appearance to those previously used, if they are not then generally planning permission will be required.

If you live in a listed building, you will need listed building consent for any significant works.
If you live in a designated area such as a conservation area or national park, then additional restrictions may be in place.

If you are unsure whether the work falls within permitted development rights you can check with your local planning authority or submit a lawful development certificate to prove the change is lawful and prevent any future enforcement action.

I want to build my own house, what do I need to know?

Research indicates that more than half of the population would like to build their own home at some point in their lives. While it is a significant commitment that demands time and dedication, the reward is a home designed specifically to suit your needs and lifestyle.

As part of the self-build journey you will have to consider many factors including:

  • Finance
  • Location and acquiring land
  • Modular homes
  • Planning permission.

Read detailed guidance about self-build homes on Planning Portal

Can I put a flagpole in my garden and how tall can it be?

You can put one flagpole up to 4.6 metres high in your garden without needing to apply for planning permission. If it is higher than this or you live in a protected area such as a Conservation Area or listed building then consent will be required.

Certain flags can be flown without needing consent, such as national flags.

Read government guidance on flying flags for more information.

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