Terry Farrell and Partners' new Home Office headquarters building officially opened its doors last week.
The £311 million development in Marsham Street, Whitehall, will eventually house 3,400 civil servants including staff from Her Majesty's Prison Service.
Funded through the Private Finance Initiative, the 54,000m 2 scheme replaces a trio of 20-storey concrete tower blocks built in the 1960s, known unaffectionately as the Three Ugly Sisters.
Farrell has had a longstanding involvement with the 2ha site, having previously prepared a series of outline masterplans for the area in the early 1990s.
It has taken less than three years to construct the new lowrise building in Westminster, which has three central atria as well as meeting rooms, coffee bars and breakout areas.