20 Fenchurch Street – (Walkie-Talkie)

001 Walkie 1At a glance

  • LOCATION: City of London
  • PRODUCT: Fan Coil Units
  • TYPE: 270MM deep ceiling void units
  • CONSULTANT: Hilson Moran, Chapman BDSP, Atelier Ten, MH Associates
  • CONTRACTOR: Canary Wharf Contractors


20 Fenchurch has been nicknamed The Walkie-Talkie because of its distinctive shape. Construction was completed in Spring 2014, although the top-floor ‘sky gardens’ are expected to open during 2015. The 34-storey building is 160 m (525 ft) tall, making it the fifth-tallest building in the City of London.

Joint-developers Land Securities and Canary Wharf Group said 20 Fenchurch Street would be completed in 2011, however in 2009 during the depths of the Great Recession, the estimated completion was changed to 2014.

Diffusion supplied 2000 units in The Walkie-Talkie building across multiple floors to various. The specification asked Diffusion to reach Fan power levels of  0.19w/l/s, however Diffusions Fan Coil Units actually met 0.17w/l/s.