Offices for 210 MPs and a suite of Select Committee Rooms, across the road from Big Ben and the Houses of Parliament.

Conceived in the tradition of a Thames-side palace facing the river, the building integrates the disparate buildings of the Parliamentary estate. The accommodation is arranged in a six storey rectangular block, around a central courtyard. This is roofed at ground floor level by a diagrid of oak members with stainless steel joints, covered by a frameless glass skin. Surrounded by restaurants and the library, with shady trees and tranquil pools, it has become a meeting place and focus for Parliamentary life.