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Permitted development means you need to give us prior notification of certain changes rather than applying for planning permission.
It is possible for homeowners wishing to build single storey rear extensions between 3 metres and 6 metres (for an attached house) and 4 metres and 8 metres (for a detached house) to do so without the need for planning permission. You do however, need to notify us of your intention to build such an extension.
1. Read the guidance notes. These provide further information on the process and the information required.
2. Complete the Prior notification form. This ensures that you provide all the information which is required by the legislation.
All other house extensions are not affected by this change. If your extension is above the thresholds, you will need to apply for planning permission. If your extension is below the thresholds, planning permission may not be required, but you should check before starting any work. Please use the Planning Portal's interactive house links below:-
Please also note that the new procedures do not apply in conservation areas or within the Forest of Bowland Area of Outstanding Natural Beauty. Planning permission will still be required for single storey rear extensions over 3 metres for an attached house and over 4 metres for a detached house.
When we receive a notification we have to consult with the owners/occupiers of all adjoining premises. They have 21 days to respond. We will send a copy of this letter to you.
See Planning Portal - neighbour consultation scheme for more information.
From the date we receive your notification (complete with all of the information required by the legislation) we have a period of 42 days to notify you of one of the following outcomes:
If prior approval is not required, or if prior approval is given, or if we fail to notify you of one of the above outcomes within 42 days, then this will indicate that the proposed development would comply with condition A.4 of Part 1 Class A of the General Permitted Development Order (GPDO) 1995 (as amended).
Please note that this will not indicate whether the proposed development would comply with any of the other limitations or conditions of Part 1 Class A of the GPDO and you should check this before proceeding with the development. Further information on the limitations and conditions can be found on the Planning Portal Permitted Development Rights pages.
If prior approval is refused, this will indicate that the proposed development would not comply with condition A.4 of Part 1 Class A of the GPDO 1995 (as amended).
As above, this will not indicate whether the proposed development would comply with any of the other limitations or conditions of Part 1 Class A.
If you receive a refusal, you will have the right to submit an appeal to the Planning Inspectorate. See the Planning Portal appeals page for more information.
For peace of mind you may choose to apply for a Lawful Development Certificate. This is not the same as planning permission but is proof that your household building work is lawful. See the Planning Portal - Lawful Development Certificate page for more information.
If you do use the Prior Notification procedure you will need to advise us when you have completed the works by filling in our completion form for housing extensions.
If you require help with something in this section, please contact us.