Erection of third floor mansard roof extension with rear terrace and second floor rear extension to existing terrace to enlarge the existing residential accommodation (Class C3), alterations to front elevation entrance and fenestration, internal alterations including new ground floor rear window.

Refurbishment and extensions at rear ground to third floor level to provide additional office accommodation (Class E), replacement of the existing doors and windows to Hertford Street facade, partially enclosure of external stair in metal mesh, partial demolition of existing flat roof to allow for ventilation for proposed plant equipment, creation of terrace at rear fourth floor for use in connection with the existing refurbished residential accommodation (Class C3) and associated works.

Variation of condition 1 and omission of conditions 4 and 5 of planning permission dated 02 May 2018 (RN: 17/10252/FULL) for the: Raising of roof ridge and installation of new extension to inner roof slope with two dormer windows, and installation of rooflight to inner roof slope in association with conversion of loft to form additional residential accommodation for flat 7A. NAMELY, to allow retention of the original slope of the roof and the replacement of dormers with roof-lights to lightwell elevation.

Use of ground floor as residential accommodation in connection with the existing flat at lower ground floor. Erection of single storey rear extension at ground floor and creation of rear ground floor terrace area. Alterations to rear and front elevations including the installation of an external metal staircase to lower ground floor, replacement of existing windows with new double glazed painted sash windows and installation of new rooflights at the rear.