If you live in a Conservation Area, you will need to apply for planning permission before cladding the outside of your house with stone, tiles, artificial stone, plastic, timber, render or pebble dash.
Outside of a Conservation Area planning permission will be required if the materials used in any exterior work are not of a similar appearance to those used in the construction of the exterior of the existing dwellinghouse.
You can find out if your property is located in a conservation area here.
Further information is available on the Planning Portal website.
Do I need planning permission?