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7-8 St. James Square



Services we provided

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Concrete frames

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Civils Package consisted of the following elements

  • Excavation of a double lift basement
  • Installation and monitoring of a complex TW scheme to support the surrounding roads andbuildings
  • Installation of a ‘’Needle Support TW System’’ to a 7 story Georgian listed building for theconstruction of a new basement
  • Reduce dig and monitor of the basement to the under side of the existing building

RC Package consisted of the following elements

  • Top down construction of the main Substation building
  • Central double core constructed in slip-form
  • Main double car lift constructed in twin wall
  • Stair core constructed alongside the existing listed building using a precast panel and a Triojump system.
  • Construction of the upper floor slab


  • Assistance with design and planning of the TW system with Galliford Try’s design team.
  • Introduction and use of Precast Twin wall and pre-cast wall sections to find a solution for theconstruction of the new RC building along side the existing, to minimise delay to the project.
  • Development of the dug sequence for the works carried out under the existing building
  • Design and installation of a large gantry for the removal of the spoil from site