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Do I Need Planning Permission for a New Garage?

  • General Rule: Typically, you don’t need planning permission for a new garage, but it must comply with specific size limitations.
  • Height Limit: To avoid planning permission, a garage’s height should not exceed 4 metres.
  • Garage Conversion: No planning permission is needed for internal conversions as long as the size isn’t increased, but check your property’s development rights.
  • Extension Considerations: For garage extensions or adding a room above, keep the height under 4 metres to avoid the need for planning permission.

Any significant home improvements require careful planning to ensure they are executed safely and within British regulations. 

When adding or converting a garage at a property, one of the most commonly asked questions is whether planning permission is required.

This article will help answer this question and provide homeowners with everything they need to know to make an informed decision.

planning permission technical drawing

Do I need planning permission for a new garage?

In short, in most instances, planning permission is not required for a new garage.

The main consideration must be the size of the garage as there are certain limits under British planning laws that mean planning permission is required, so you must familiarise yourself with the measurements.

How high can a garage be without planning permission?

While it is possible to build a garage without the need for planning permission, you must be mindful of its size.

To avoid the need for planning permission, a garage must be no higher than 4 metres to build or extend.

Any structures in excess of this height must have planning permission. With this, it’s important to consider the style of roof you opt for and the height this will take your garage to. 

How big can a garage be without planning permission?

When it comes to the rest of the measurements of the garage, in its entirety its size must not exceed half of the land around the original house – if this is the case, then planning permission will be required.

Do I need planning permission for a garage conversion?

Garage conversions are a popular choice amongst homeowners with an existing garage space who are looking to expand their living space, with options including storage space, a home gym, a playroom and much more.

When it comes to planning permission, all work must be internal and must not increase the size of the garage for this to not apply.

However, this is not a one-size-fits-all solution, so it is recommended that you check the permitted development rights for your property as some may have a condition that specifies the garage must stay as a parking space.

Do I need planning permission to extend my garage?

Those choosing to convert their garage space might also opt to extend it at the same time.

As mentioned above, the main consideration, if this is something you would like to do, is to make sure that the height of the garage does not exceed what is considered a ‘reasonable height’ which is 4 metres; anything higher than this will require planning permission.

This also applies if you are looking to build a room above the garage so it’s likely inevitable that you will require planning permission for this. 

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For further information or to book an appointment with our experienced team, don’t delay – give us a call today. 

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