165Alteration of buildings and works

#### 165 Alteration of buildings and works 165 Alteration of buildings and works > > (1) Development consent is required for an alteration of a building or work used for an existing use. > > > (2) The alteration must be— > > > > > (a) for the existing use of the building or work and for no other use, and > > > > > (b) erected or carried out only on the land on which the building or work was erected or carried out immediately before the relevant day.