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What rules apply to installing an extractor fan?
Whether you need planning permission to install an extractor fan depends on the size and placement of the fan.
For domestic installations, such as a bathroom or kitchen in your house, planning permission is not generally required. If the change significantly alters the external appearance of your home then permission may be required.
If you live in a listed building, you will need listed building consent for any significant changes.
Larger extractor fans for businesses are likely to require an application for planning permission to be made to the local planning authority. These extractors can impact the local area due to their noise, visibility and odour, as such the planning authority will need to assess the change.
Building regulations relating to ventilation and electrical works will have to be complied with, these are covered by Approved Document F and P respectively.
Read more about building regulations and the requirement for ventilation on our common projects.
Common Questions
A pergola is classed as permitted development, meaning an application for planning permission is not required provided it meets specified conditions and limits.
Outbuildings cannot be installed on the principal elevation of the property, additionally any platform must not exceed 0.3 metres in height.
If the building is listed, then you will need to apply for listed building consent and planning permission for the change.
A soakaway does not normally require an application for planning permission provided it deals with surface water and does not discharge into a public sewer. Additional regulations may apply if you are in a conservation area or within the boundary of a listed building.
Building regulations will apply to the creation of a soakaway. The soakaway must comply with Part H of the building regulations which specifies where they can be located and the size that is permitted.
Read more about Approved Document H.
Building a porch at ground level and under 30 square metres in floor area is normally exempt from the need for building regulations approval.
This is provided that glazing and any fixed electrical installations comply with the appropriate sections of building regulations.
To find out more about the building regulations for porches, visit Planning Portal.
Find out more about glazing and electrical installations
If an outdoor kitchen is not a permanent structure, then planning permission will normally not be required.
Where planning permission is required, it may be granted through permitted development rights, provided it meets the limits set out in legislation. Most outdoor kitchens fall within the set limits unless they are particularly tall or close to a boundary.
While there is no specific permitted development right for ‘outdoor kitchens’ it may be classified as an ‘outbuilding’.
You can view the limitations for outbuildings and outdoor kitchens in the relevant common project
If the structure exceeds the limits set out through permitted development rights, then it will require an application for planning permission.
Different rules may apply if you live in a listed building or conservation area. If this is the case, you may wish to consult your local planning authority.
Read about the building regulations that cover outdoor kitchens.
If your proposal for planning permission or building regulations approval is solely for extensions or alterations to a disabled person’s house to improve access, safety or comfort then you are exempt from paying a planning or building control fee. Additionally, if you are providing means of access for disabled persons to public buildings you are exempt from any fee.
Note that for building regulations approval, you will only be exempt when applying to a local authority building control body.
