We were asked to almost demolish, then totally refurbish a 2 storey maisonette at the top of an old embassy building in Belgrave Square. The apartment was completely gutted and the roof removed, huge steel lattice beams were inserted, so rationalizing the bright open plan entertainment space on the top floor, which comes, complete with slide off roof light and sunny roof terrace. Another large roof terrace with spectacular views was added above. The chic master suite and 2 other bedrooms, all with bespoke stone bathrooms, are located on the lowest level.