Certificate of lawfulness for proposed demolition of existing shed and building of new home office

Certificate of Lawfulness Existing for change of use and the retention of a 7 m x 4.2 m x 2.4 m mono pitched timber framed and clad twin stable boxes, a 3.6 m x 4.2 m x 2.3 m timber farmed and clad mono pitched stable building with lean to stables, a 5.5 m x 4.2 m x 2 m timber framed and clad mono pitched store building, .1 m x 1.8 m x 2.15 m general storage shed timber framed pitched roof and 3.1 m x 1.8 m x 2.15 m general storage shed timber framed pitched roof used to support the grazing field next door of about 5 acres