Part Retrospective: Variation of Condition 2 (plan numbers) pursuant to planning permission 18/1007/FUL (Two storey and single storey rear extension, extension to basement and alterations to fenestration detail) to increase in ridge height and alterations to the design of the approved roof form, alterations to existing first floor catslide roof form, alterations to single storey side extension, internal alterations and alterations to fenestration detail