Houses and buildings up to 15 metres high
Unless 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. (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 100 centimetres in any linear dimension (b) (not including any projecting feed element (c), 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 (d) 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; and
*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.
b. Linear dimension: This means taking the measurement in a straight line, starting from the edge of the antenna to the opposite edge of the antenna. The measurement should only include the antenna itself and not any attachment needed to fix it to the wall or roof, or connect it up to your equipment.
c. Projecting feed element: In a dish antenna, the incoming signals are received by the dish which then ‘reflects’ the signal into a central ‘feed horn’. This is usually positioned at a short distance (a few inches) away from the dish and held in place by projecting arm or arms.
d. cubic capacity: This means the volume (the amount of in 3 dimensions) occupied by an object using known method of measurement.
Buildings 15m or more in height
Unless your building is in a designated area, you do not need to apply for planning permission to install a dish or other 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; and
*an antenna mounted on the roof does not stick out above the roof more than 300 centimetres above the highest part of the roof.
Source: planningportal.gov.uk
Also documented in the dish set up section
http://www.satellites.co.uk/forums/...ms/51478-new-uk-dish-planning-guidelines.html