D.2 Interpretation of Part 6
For the purposes of Part 6—
(a)an area calculated as described in this paragraph comprises the ground area which would be covered by the proposed development, together with the ground area of any building (other than a dwelling), or any structure, works, plant, machinery, ponds or tanks within the same unit which are being provided or have been provided within the preceding two years and any part of which would be within 90 metres of the proposed development;
(b)400 metres is to be measured along the ground.