In this Part of this Act, except where the context otherwise requires—

• F1“appropriate tribunal” means—

  1. a

     in relation to a dwelling-house in England, the First-tier Tribunal or, where determined by or under Tribunal Procedure Rules, the Upper Tribunal; and

  2. b

     in relation to a dwelling-house in Wales, a rent assessment committee.

• “improvement” includes structural alteration, extension or addition and the provision of additional fixtures or fittings, but does not include anything done by way of decoration or repair;

• “prescribed” means prescribed by regulations under section 74 of this Act, and references to a prescribed form include references to a form substantially to the same effect as the prescribed form.

References in this Part of this Act to rates, in respect of a dwelling-house, include references to such proportion of any rates in respect of a hereditament of which the dwelling-house forms part as may be agreed in writing between the landlord and the tenant or determined by the county court.