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Gresham Street, London EC2

Client : Land Securities
Value : 3.5 M

Overview

Asbestos removal and demolition of three office blocks, opposite the Guildhall and surrounded by further office buildings.

Scope of Works

  • Having removed and disposed of the asbestos, the floor by floor demolition commenced. 
  • Concurrently however, access was required for the Museum of London to investigate basement areas, as the site was known to be of significant historic value.
  • The main archaeological excavation had to be carefully programmed to facilitate a complex temporary works scheme.
  • Wholesale excavation of the site would have undermined adjacent roads and foundations, therefore the project was split into three distinct phases. 
  • As the Museum completed their work, John F Hunt revisited the site to remove old foundations and obstructions prior to handing the site to Sir Robert McAlpine and the piling rigs.
  • Although the demolition was relatively conventional it was the careful liaison and integration with the archaeologists that is particularly worthy of note.
  • The temporary scaffold structure offering protection to the excavation was the largest ever erected in the city to date and covered nearly an acre.
  • Suppression methods were utilised to combat dust pollution and quieter concrete crackers were used instead of noisy breakers.
  • Demolition was completed within the 64 week programme and within the £3,500,000 contract sum.

 

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