To vary Conditions 1 (Approved drawings) and 11 (Tree Protection Plan) of previously approved 20/00689/VAR for To vary Conditions 1 (Approved drawings), 6 (Foul & Surface Water drainage) & 9 (External Materials) of previously approved 19/01280/FUL for change of use of existing annexe and part of main dwelling to stud office, erection of lobby to stud office and erection of replacement owner's dwelling