Christ & Gantenbein's UK House design expanded and redefined the building's entrance lobby, amenities and lightwells. The project was completed in 2023.

The intervention draws upon the existing building's layered history and consolidates its striking external expressions with a new, modern, and unique interior experience fit for a leading business location.

Christ & Gantenbein is an international practice founded in 1998 by Emanuel Christ and Christoph Gantenbein. Headquartered in Basel, Switzerland, the office employs a team of over 90 architects from 20 countries. The firm's most prominent projects include the expansion of the Swiss National Museum and the extension of the Kunstmuseum Basel, both cultural landmarks with global reach.