Development of a single Passivhaus certified new-build dwelling with new access, parking and hard/soft landscaping arrangements . Exploratory trial excavations undertaken February 2021 and requiring retrospective planning permission. Variation of condition 1 of permission 21/01133/F to vary the approved plans. Changes include addition of an en-suite, amendments to courtyard space, removal of a side door and substitution with windows to the en-suite and two bedrooms. Continuation of living roof over new en-suite space, and addition of rooflight. Introduction of new front door and side light.