7 Hertford Street London W1J 7RJ
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.