Development is not permitted by Class G if—
(a)the capacity of the container would exceed 3,500 litres;
(b)any part of the container would be more than 3 metres above ground level; or
(c)any part of the container would be nearer to any highway which bounds the curtilage than—
(i)the part of the original building nearest to that highway, or
(ii)any point 20 metres from that highway,
whichever is nearer to the highway.