Your feedback matters
Want to learn everything about Webflow? Download our free eBook today.
.svg){kind=small}
What permission do I need to knock through adjoining properties?
Planning permission is not normally required to turn two properties into one by knocking through a party wall provided the changes are internal and do not impact the external appearance of the property.
You should check with your local planning authority that they agree, and there are not any previous planning changes or conditions which may have an impact.
Additional permissions may be required depending on the building’s history and their location. If the building is listed, an application for listed building consent will be required before any major changes are made to the dwellings.
The work will have to comply with building regulations, the focus will be on structural work and safety.
Read more about how building regulations apply to internal walls.
Common Questions
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.
Rendering or cladding the exterior walls of your house may fall under permitted development rights, meaning an application for planning permission is not required provided you meet certain limits and requirements set out in legislation.
If you live in a listed building, you will need listed building consent for any significant works whether internal or external.
If you live in a Conservation Area, a National Park, an Area of Outstanding Natural Beauty or the Broads, you will need to apply for planning permission before cladding the outside of your house with stone, artificial stone, pebble dash, render, timber, plastic or tiles.
Outside these areas, cladding may be carried out without having to first apply for planning permission provided the materials are of a similar appearance to those used in the construction of the house.
If the new materials will not have a similar appearance to those previously used you will be required to submit an application for planning permission.
Read more about change to external walls on our common project.
Replacing existing render
Replacing existing render on the outside of your house with render of a similar appearance will not require planning permission as it is considered permitted development.
If you are changing the external appearance of the house or in a protected area such as a conservation area, then planning permission will be required. The external appearance of the house is likely to be changed when you are changing the type or colour of the render.
If the building is listed, then you will need listed building consent.
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.
Planning permission is not required for moving internal walls in a flat.If the building is a listed building, you may require listed building consent.
Removing a load bearing wall will require building control approval as it is altering the structure of the property. You will be required to provide a report from a structural engineer who will provide structural calculations.
Work on internal walls may also affect fire escape routes, ventilation, drainage or electrics. These should be considered during the design process and work should be carried out by a member of the competent person scheme where possible.
Land and buildings are categorised by their type and purpose through a system known as ‘use classes’. A 'Change of use' can be within the same Use Class or from one Use Class to another.
You can find a full list of use classes and change of use scenarios related to planning on the Planning Portal website.
