Next up in our high-tech architecture guide, we look at Portcullis House in London, which demonstrated how the style could be used in historically sensitive locations.
Built opposite the Palace of Westminster, Portcullis House is an office building designed by Michael and Patty Hopkins' studio, now called Hopkins Architects, as offices for the UK Parliament.
The building is six-storeys high and, like other buildings of the high-tech architecture style, has its services and structure expressed externally.
In the case of Portcullis House, this is marked by a roof lined with ventilation chimneys, a glass-roofed atrium and a robust substructure that is visible within the London Underground tube station it sits above.

Portcullis House was the result of a space audit of parliament carried out by the Hopkins' studio in 1988, which suggested there was an urgent need for more office space for members of parliament (MPs). Four years later, Parliament commissioned the studio to develop the office to accommodate 213 MPs and their staff.
The brief demanded an ultra-low energy building, which would also complement its setting in a UNESCO World Heritage Site alongside the Palace of Westminster. The Palace includes the Houses of Parliament and London landmarks such as Elizabeth Tower, often referred to as Big Ben.
It also asked that the building be designed in conjunction with the Westminster tube station, which was built directly below the building.

Porticullis House was designed with ...