The supporting structure is in reinforced concrete. The mullion/cill façades supporting the hollow-core floor slabs without compression screeds are particularly noteworthy. The east façade has staggered openings over three levels with staggered expansion joints. The basement east garden level forms part of an approximately 6 m excavation. The ground is stabilised by a piled retaining wall with console over this height.
The building has an HQE certification of Very Good (2013) and a BREEAM rating of Excellent. It also has Biodiversity certification.