Alterations to the existing rear extension to include replacement of the flat roof with a pitched roof and insertion of fully glazed rear wall. Removal of 2no. rooflights to rear elevation to allow the formation of 2no. dormers to rear roofslope. Replacement roof and insertion of 1no. rooflight to existing first floor rear extension and insertion of 1no. window to east elevation. Change of use from dwelling (Use Class C3) to mixed use dwelling and short stay accommodation (Use Class C3/Sui Generis).