18 Hillgate Place, LONDON, W8 7SJ
Alterations to flat roof for use as a roof terrace, including reinforcement to roof structure; new insulated flat roof build-up with single ply-membrane finish; new flat roof-lights; new glass balustrades to front and rear, set-back from parapet edge; new paving, to sit on a pedestal system to form terrace floor; new timber staircase internally to provide access to roof terrace