Erection of a temporary fire escape staircase for 21 Arlington Street for a period of 3 years and facilitating works including demolition of modern conservatory to William Kent House and a blockwork wall, associated cuts into listed fabric to enable structural support of the escape stair, and works to make good the fabric upon removal of the temporary escape stair and permanent hard landscaping in place of removed conservatory.

Demolition of glazed conservatory and replacement with a new glazed extension, installation of external air conditioning unit at upper ground floor eastern side of the house, installation of two windows in historic blocked upside facade windows, and reinstate historic elements lost through insensitive past refurbishments. (Linked to 21/01679/FULL)

Excavation of a basement under footprint of the house and part of front and rear garden incorporating lightwells, demolition of existing rear conservatory and erection of a single storey glazed rear extension, removal of rear dormer and erection of new dormer window, installation of replacement rooflights, replacement/repair of windows, rebuilding of existing timber shed, installation of vehicular gates, installation of an air conditioning unit at the side of the building, and general internal/external refurbishment works. (Linked to 20/03115/FULL)