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L'înformâtion et les sèrvices publyis pouor I'Île dé Jèrri

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Garage conversions (permissions)

​Planning permission

You are able to convert a garage attached to your house without the need for planning permission provided that:

  • it is being built within your domestic curtilage (‘domestic curtilage’ is the area of land on which a dwelling house sits which is used for residential purposes.  It does not include a field or other open land next to a house, even if it is in the same ownership) and
  • the garage is not in front of a principal elevation of the house (‘principal elevation’ means any elevation or wall of a house that faces and is within 20 metres of a public road)
  • the garage height does not exceed 3.5 metres if the roof is pitched (in which case the bottom of the roof planes must not exceed 2.5 metres). This includes a part flat part pitched roof
  • the garage height does not exceed 3 metres if the roof is flat
  • any part of the garage roof if it is within 1 metre of an adjoining property boundary does not exceed 2 metres in height
  • the room will be directly accessible from within the main house
  • it will not be used as a separate unit of accommodation
  • it will not be used for commercial purposes
  • any previous permission relating to the property does not state that the garage must be retained for parking
  • your property is not registered as a listed building or place (LBP) or a potential listed building or place (pLBP) and does not fall within an area of archaeological potential (AAP)
  • no new window or door openings are created or any existing openings blocked up, if the building is in a conservation area (CA)
  • no windows or doors are created or altered above ground level

Note: you will need to apply for planning permission if your 'permitted development' rights have been removed by a condition on a previous Planning Permit in the last 30 years or so.

Is my building or site listed?
Making an application - planning

Building permission

The conversion of a garage, or part of a garage, into habitable space will require building permission

Some of the elements that normally need to be satisfied under the requirements of the building bye-laws when converting a garage include:

  • in-fill garage door
  • flooring 
  • ventilation
  • fire safety

Making an application - building

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