For (i) the construction of a single-storey extension to the side and rear of the existing dwelling. (ii) For the installation of a new proprietary effluent treatment system & percolation area to replace the old style septic tank system on the subject site

For the construction of a dormer extension to the side of the existing dwelling, the installation of a new proprietary effluent treatment system & percolation area to replace the old style septic tank system. Gross floor space of proposed works: 118 sqm(extension)