This recent ‘Bramshill’Judgement has concluded that the crucial test of whether new homes are isolated is whether the homes are remote from a settlement, as opposed to other existing buildings. Therefore it could make it easier for authorities to resist new homes under this judgement, as reflected in the recent appeal decision (link below) see footnote 3.
How a court ruling will affect decisions on whether new homes are too isolated | Planning Resource
Heading 9 (cornerstonebarristers.com) appeal decision quotes above case