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Do I need planning permission to add air conditioning to my home?

Adding air conditioning to your home is considered permitted development provided all the limits and conditions set out in legislation are met. The limits set out the size, placement and quantity of air conditioning units allowed.

If your home is in a protected area such as a Conservation Area then permission will be required. If you live in a listed building then consent will be required.

The installation of air conditioning must comply with building regulations. It is advisable to contact an installer who can provide the necessary advice, preferably one who belongs to either the Microgeneration Certification Scheme or the relevant Competent Person Scheme.

For more information on air conditioning, read our heat pumps common project.

Common Questions

Do I need planning permission to run an Airbnb or bed and breakfast?

Planning permission is not required if the home will be used as a short-term let for 90 days or less throughout the year.

If you plan on using the home as a short-term let for more than this time period, then you will need to apply for planning permission for a change of use.

If you rent a room in your property while you still live there, you will not require planning permission.

Do I need planning permission for external insulation?

Planning permission may be required for external insulation if it impacts the external appearance of the building. If materials are of a similar appearance to those used in the construction of the house, then permission will likely not be required.

Listed buildings will require listed building consent for any significant work.

If you live in a Conservation Area or other protected area you will need to apply for planning permission before making changes to the outside of your house.

 

Further information and building regulations advice is available on Planning Portal. Read our external walls common project.

Do I need planning permission to add a balcony?

Balconies, verandas and raised platforms will often require planning permission as they do not fall under permitted development rights.

An exception to this is Juliet balconies which do not have any external access or platform, allowing them to be classed as permitted development.

A raised platform of under 0.3 metres is also allowed without planning permission, this may be an area with slightly raised decking.

When applying for planning permission for a balcony it is important to consider your neighbours privacy and garden. The features and location of the property may have a significant impact. If the building is listed or in a conservation area, then this may have a bearing on any decisions.

Is building regulations approval needed for a garage conversion?

The conversion of a garage, or part of a garage, into habitable space, will normally require approval under the building regulations.

As part of the garage conversion, it is likely that the original garage door will be in-filled with a new wall and possibly a window or door, and a new foundation may be needed for the new wall. 

As well as the foundation, you also need to consider:

  • Floor
  • Walls  
  • Ventilation

Read more about the building regulations for garage conversions

Do I need permission to remove chimney breasts?

Planning permission is not required to remove an internal chimney breast as the change does not impact the exterior of the house. Rules may differ if you are planning on removing the chimney stack, or if you are in a conservation area.

If you live in a listed building, then you will need to apply for listed building consent for any major changes to the building.

Building regulations approval will always apply when removing chimney breasts as they are part of the building’s structure. You should seek advice from a structural engineer who will provide drawings and calculations that can be submitted as part of your application.

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