Material amendment to planning permission reference: 2019/01449/FUL dated 12th September 2019 for the "Demolition of existing three storey dwellinghouse and erection of a replacement part one, and part three storey plus-basement single family dwellinghouse; erection of an external staircase from basement to garden level at the rear of the property." Amendments sought are the increase in the size of the front lightwell.