A former concert hall on a site once considered for the BBC HQ has been transformed into high-end office use with Crittall Windows supplying much of the fenestration.

Brock House was originally constructed as The Philharmonic Hall and occupies a complete block bounded by Great Portland, Langham, Gildea and Hallam Streets in Westminster.

Built in 1908, the Philharmonic Hall first houses a series of promenade concerts before becoming a cinema showing travel films. It was used during WWII as the home of the BBC Radio drama department, then a mechanical workshop and finally offices, before being vacated by the Corporation in 2018. It was then acquired by The Office Group for a complete internal and external transformation over the 28,000sq ft of space.

Windows and the first, second, third and fourth floors were installed using Crittall W20 section steel frames, polyester powder coat finished in RAL 9911 Crittall White. The frames are glazed with 16mm insulating glass units featuring solar control glass to the outer pane. Black framed ground floor windows were also supplied by Crittall.

The site is one of the very few central London office locations on an island site which allows natural light to penetrate from every elevation – a fact that is enhanced by the slender steel frames of the Crittall Windows. Brock Img 2225