Variation of Condition 2 (Approved Plans Section 73) of Planning Permission ref: 17/12989/FUL (Erection of a part 2 storey, part 3 storey side/rear extension to enlarge existing flats, an enlargement of the basement and conversion of the garage and store room at ground floor level into offices (B1c) dated 25/07/2018): Erection of 3rd floor extension to create 1 additional self contained residential unit