Confirmation that the application referenced 19/05543/FULL dated 10.09.2019 for "Excavation of new basement (part 2, part 1 storey) beneath rear garden, demolition of existing rear lower ground floor conservatory and erection of rear lower ground floor extension. Erection of ground floor side/rear extension and external spiral staircase. Installation of ventilation plant. Internal alterations." has been lawfully implemented.