the partial demolition of the existing garage and store together with the conversion and refurbishment of part of the existing garage and store to a new single storey car port and store room, the construction of a new single storey extension to the side (South East) and rear (South West) of the existing dwelling house and the erection of velux rooflights to the first floor bedrooms to the south east and south west elevations all connected to the existing on-site septic tank and percolation area together with all ancillary and associated site works