Confirmation of the implementation of planning permission dated 1 March 2020 (RN: 20/07606/FULL) for the: 'Variation to conditions 4 (Code of Construction Practice), 6 (Structural details) and 7 (Crossrail) of planning permission dated 09 October 2017 (RN:17/07606/FULL) for the excavation of a basement beneath the footprint of the house, and use of existing ground floor garage as living accommodation. Alterations to roof.