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I want to build an extension - do I have to pay the CIL

I want to build an extension to my house, or a permanent summerhouse or garage or other structure in my garden – do I have to pay the CIL?

You will need to submit the ‘CIL Additional Information Form’ in order for your planning application to be valid.  On that form you will have to tick whether your proposal is over 100 sqm of floorspace.  If it is less than 100 sqm and your house is your main residence you will not have to pay the CIL or submit any more forms relating to it.

If your proposal is over 100 sqm of floorspace you will also not have to pay any CIL, as long as you submit ‘CIL Form 9 - Self Build Residential Extension Exemption Claim Form ’ and have it agreed by the Council before commencement on site.