Self-contained flat in loft level (total of three in building); alteration of roof from hip to gable end; roof extensions to rear of main roofslope and over outrigger building; alteration to front elevation involving replacing first floor window opening with door and window opening incorporating formation of rooftop balcony with timber balustrade; alteration to rear elevation involving replacement of rail balustrade of first floor rooftop balcony with glazed balustrade; and installation of rooflights to front roofslope and crown