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Chiltern District Council
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Conservatory

In order to be exempt your conservatory must satisfy the following criteria:

  • Must be at ground floor level only.
  • Internal floor area must not exceed 30m2.
  • Must not be used for any other purposes (e.g. Kitchen or living /sleeping accommodation).
  • Existing external entrance doors and /or windows must be retained.
  • Must comply with Building Regulation N. (Glazing and Materials Protection).
  • Must not form an increased opening from the existing building.


N.B. The Gas Safety Regulations may be relevant where your exempt extension will enclose a balanced flue outlet and British Gas must be notified in these cases.

pdf icon Conservatory [27kb]