In this guide

1. Introduction

Before you buy or rent an antenna, check whether you need planning permission, listed building consent, or permission from the landlord or owner. You are responsible for placing antennas in the appropriate position.

You do not need to apply for planning permission to install an antenna on your property, subject to the following limitations and conditions:

  • There will be no more than two antennas on the property overall (these may be on the front or back of the building, on the roof, attached to the chimney, or in the garden).
  • If you are installing a single antenna, it is not more than 1 metre in any linear dimension (not including any projecting feed element, reinforcing rim, mounting and brackets).
  • If you are installing two antennas, one is not more than 1 metre in any linear dimension, and the other is not more than 60 centimetres in any linear dimension (not including any projecting feed element, reinforcing rim, mounting and brackets).
  • The cubic capacity of each individual antenna is not more than 35 litres.
  • An antenna fitted onto a chimney stack is not more than 60 centimetres in any linear dimension.
  • An antenna mounted on the roof only sticks out above the roof when there is a chimney-stack. In this case, the antenna should not stick out more than 60 centimetres above the highest part of the roof, or above the highest part of the chimney stack, whichever is lower.

Buildings in conservation areas, national parks, areas of outstanding natural beauty or world heritage sites

If your building is in a conservation area, national park, area of outstanding natural beauty or World Heritage Site, you do not need to apply for planning permission to install an antenna on your property, subject to the following limitations:

  • the antenna is not installed on a chimney, wall, or a roof slope which faces onto, and is visible from, a road
  • the building is more than 15 metres in height.

Any work which does not meet all these requirements will require planning permission.

Further information

The Welsh Government has produced a householder guide, available here, to help you understand what the regulations say about the number and the size of antennas allowed and where they should be placed.