The High Weald Unit's role is to interpret government policy in the light of the AONB Management Plan and to provide advice to local authorities and others regarding planning applications. The Unit also responds to consultations regarding new planning policy at national, regional and local level, again based on the Components of Natural Beauty identified by the Management Plan. The Local Council is of course the responsible body as regards the exercise of planning powers.
Going beyond ensuring that residential buildings, in particular, enjoy adequate natural light and privacy, considering solar heat and light capture through the use of PSD has not been regarded as a normal planning matter and not something that can ultimately be defended at appeal. Where planning authorities have sought to apply PSD principles this has been done in the past by using Supplementary Planning Guidance, possibly with a reference in the local plan Development Plan.
PSD should be dealt with principally by way of LDD policy and guidelines. It does not readily lend itself to the use of planning conditions because it concerns the fundamental design of the building and cannot easily be dealt with by way of conditions.