AREA: 150,000 SQ FT



Leslie Clark was appointed to provide cost consultancy services on the refurbishment and two-storey extension of this existing office building on Gresham Street in The City of London. The sitting bar tenant on the ground floor and basement vacated their space which will be reconstructed as new retail/restaurant space in the refurbished scheme. The works comprise the complete stripping out of the existing building and alteration work to remove the upper roof and floor and all of the external cladding, curtain walling and windows. r cores and reconfigured executive toilets on each floor.

  • Major structural alterations have taken place to increase the net lettable area around the perimeter and rear lightwell of the building where the new curtain walling is to be installed, together with a larger, double-height reception with new lifts and disabled access facilities. There will be smaller cores and reconfigured executive toilets on each floor.
  • The increased net area of the building will be completed to a Cat A specification with raised access flooring and new building services and finished befitting a Grade A office building. Only two floors of the building will be fitted out to Cat A, with the remaining 7 floors being left as shell and core.
  • Due to programme constraints, the cladding package was procured ahead of the main contract with a separate tender undertaken for these works. The Portuguese cladding subcontractor was then novated to the successful main contractor following a competitive single-stage design and build contract tender process. This enabled design to be progressed with the cladding sub-contractor and the specialist prior to the main contractor being appointed.
  • The strip-out was completed prior to the appointment of the main contractor who subsequently utilised this incumbent demolition contractor to remove the roof, top floor and external envelope, together with all noisy structural alteration works. This again helped with the programme and allowed early sight of the existing structure which greatly assisted the design in de-risking the project.
  • Novation of the cladding contractor has proved vital to the overall programme and Leslie Clark played an important part in the final negotiations with the successful cladding contractor and subsequently the novation to the main contractor during final negotiation of the main contract.

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Leslie Clark specialises in the retail, office/commercial, leisure/hospitality, and residential sectors but has extensive experience of many other project types throughout the UK. Today we are at the forefront of sustainability alongside many of our clients.