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Ensure you are prepared to start works


Planning Permission

A loft conversion for your house is considered to be permitted development, not requiring an application for planning permission, subject to the following limits and conditions: A volume allowance of 40 cubic metres additional roof space for terraced houses* If any of the conditions below are not met you will require planning permission.


  • The loft conversion does not extend beyond the plane of the existing roof slope.

  • No part of the loft conversion is higher than the existing roof.

  • No verandas, balconies or raised platforms are to be added.

  • Your property is not in an area of outstanding beauty or a conservation area.

  • The loft conversion (except hip to gable) is set back 20cm or more from the original eaves.

  • The extension does not overhang your property






















For the full list of regulations for planning permission, check your local council's planning portal

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