Building an outbuilding on land around your house

You need to apply for planning permission to build an outbuilding around your house in the following circumstances:

  • Any part of the outbuilding would project beyond a wall that fronts a highway and is the principal front elevation of the original house
  • Outbuilding would be more than single storey and the eaves would be more than 2.5 metres in height
  • Overall height would be more than four metres with a dual pitched roof, or three metres for any other roof, unless the outbuilding is within two metres of the boundary, in which case the maximum height is 2.5 metres overall
  • Structure would be, or would contain, a veranda, a balcony or raised platform
  • Total footprint of the outbuilding would take up more than half of the area of the land around your house