In this appeal the Inspector found a pre-existing Class Q prior approval permission for a barn conversion amounted to an implementable fall-back position. By comparison of the appeal proposals with the fall-back position the Inspector was satisfied that there would be a reduced impact on the openness of the Green Belt, by virtue of reduced floorspace and volume and these amounted to VSC to justify inappropriate development in the Green Belt. Having satisfied the VSC test the Inspector found there was no reason to refuse under the first limb of paragraph 11d of the NPPF and in the absence of 5yr HLS the appeal proposal could benefit from the tilted balance.
https://acp.planninginspectorate.gov.uk/ViewCase.aspx?Caseid=3255105&CoID=0