Excavation of double storey basement extending under house, front and rear gardens and underneath the pavement to Craven Hill, associated replacement of rear garden staircase and garden room and boundary railings, and alterations to front lightwell. Replacement of storage shed with louvred structure for air conditioning equipment.

Excavation of double storey basement extending under house, front and rear gardens and underneath the pavement to Craven Hill, associated replacement of rear garden staircase and garden room and boundary railings, and alterations to front lightwell. Replacement of storage shed with louvred structure for air conditioning equipment, new subterranean link structure to facilitate amalgamation of nos. 23 and 23a Craven Hill