the demolition of an existing dwelling and to erect a singlestorey replacement dwelling. The works are summarized as – a) the demolition of existing two-storey dwelling b) the demolition of existing farm buildings c) the provision of a new vehicular entrance d) the decommissioning of an existing septic tank and site percolation area e) the provision of a new on-site sewage treatment plant and associated site percolation area f) the adjustment of site levels g) the construction of a new single-storey replacement dwelling with domestic garage and carport and to carry out all associated site development works.