The policy is- as long as the dish is not at the front of the property you're fine. So put them on the roof or at the back.
Houses and buildings up to 15 metres high in designated areas
If your house (or the building in which you live) is in a designated area, you do not need to apply for planning permission to install an antenna on your property, as long as:
- there will be no more than two antennas on the property overall;
- if you are installing a single antenna, it is not be more than 100 centimetres 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 100 centimetres 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; and
- an antenna is not installed on a chimney, wall, or a roof slope which faces onto, and is visible from, a road or a Broads waterway. (If you are not sure, get advice from the local planning authority.)
Buildings 15m or more in height in Designated Areas
If your building is in a designated area, you do not need to apply for planning permission to install an antenna on your property, as long as:
- there will be no more than four antennas on the building overall;
- the size of any antenna is not more than 130 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 does not stick out above the roof more than 300 centimetres above the highest part of the roof; and
- an antenna is not installed on a chimney, wall, or a roof slope which faces onto, and is visible from, a road or a Broads waterway. (If you are not sure, get advice from the local planning authority.)
Any work which does not meet all these requirements will require planning permission