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Do I need planning permission for a single storey extension?
In many circumstances, rules known as ‘permitted development’ rights allow you to extend a house without needing to apply for planning permission, providing specific limitations and conditions are met. If you want to exceed these limits and conditions, then it is likely that an application for householder planning permission will be required.
The limits and conditions for building an extension under permitted development rules are covered in our guidance on the Planning Portal, and there are other points to take into consideration.
Visit Planning Portal to find out more.
Common Questions
Verandas will often require planning permission as they do not fall under permitted development rights. If the veranda is raised over 0.3 metres, covers more than 50% of the land around your house, is on the principal elevation or on a roof then it will need planning permission.
You may require additional consents if you live in a Conservation Area or listed building. If you are unsure, you should contact your local planning authority.
For more information about planning permission for verandas and balconies, read our common project.
Widening or creating a new external doorway will likely fall under permitted development rights, meaning an application for planning permission is not required provided you meet limits and conditions set out in legislation. If the change is on the side or rear of the building it is more likely to comply with planning regulations.
If you live in a listed building, you will have to apply for listed building consent for any significant works, whether internal or external.
New external doorways which create a new or widened opening must comply with building regulations as they may impact the structure of a building.
You will often not require planning permission to fit a log burner. If you are adding a new external flue or chimney then different rules will apply.
If you live in a listed building you will require listed building consent.
The installation of a log burner must comply with building regulations. It is recommended that you use a HETAS-registered installer who can certify the work. Visit the HETAS website to search for an installer.
Read more information around fitting an external flue or chimney in our common projects section.
Planning permission is not required for internal changes such as changing a bathroom to an accessible wetroom, however, if you live in a listed building, you will have to apply for listed building consent for any significant works, whether internal or external.
Building regulations approval will likely be required for changes to a make a bathroom accessible, specifically when the change will impact the structure of the room, drainage and electrical systems. It is recommended to have work completed by a member of the competent person scheme.
The principal elevation is the most visible or prominent side of a structure, typically facing a street or public area. While often considered the 'front' of the building, it may not always contain the main entrance. There can only be one principal elevation of a house.
