Amendments to planning permission dated 23rd December 2016 (RN 16/02343/FULL) for the DEVELOPMENT SITE AT 16, 18-25 & 26 PARK CRESCENT & 77-81 PORTLAND PLACE- Demolition and redevelopment of 16 Park Crescent, 18-25 Park Crescent, 26 Park Crescent and partial demolition of 77-81 Portland Place including reinstatement of Grade I listed Park Crescent facade to create [76] residential units and [1910 sqm] D1 floorspace. Creation of [9] new mews properties within rear courtyard at Park Crescent Mews. Car parking and associated servicing, access and landscaping. NAMELY, retrospective internal amendment to the third-floor level of duplex Apartment no. C4.12 (47).