75 King William Street

This project was awarded Commended in the New Build category at the Natural Stone Awards 1989.

The official guide said, 'The site plan is three sided with the façade on King William Street, clad in Portland Stone, part new and part existing. Rosa Bruno granite has been used to clad the Nicholas Lane and Clements Lane elevations.

The design of the granite is very inno ­vative, resulting in façades being very profiled, and includes elements such as storey height solid fins and solid transoms forming a series of Brise Soleil, circular columns and extensive areas of granite fixed to frames.

The Architects chose a blend of polished honed and flamed finishes which creates a dramatic contrast over the façades, but still in keeping with   the adjacent properties. Rosa Bruno granite is quarried in Spain, and this contract was manufactured in Italy, with   the finishing works executed in the UK i.e. the forming of the fixing holes, "boxing up" and the fixing of the granite to the frames off-site.

The complete granite works ore fixed using stainless steel only. Particular attention is drown to the fins and transoms where special 'one off' drilling rigs were designed and made to form the dowel holes to ensure align ­ment of the fins and transoms one to another. The positioning of the fins called for absolute precision involving the use of a specially designed counter-balanced lifting beam connected to the tower crane which ensured the accuracy required.

Due to the restricted access and storage on site, all materials, granite fixings and frames etc. were stored on the scaffold, which had to be erected as fixing progressed. Upon site inspection one will fully appreciate, that the team, the Architects, the Project Managers, the Main Contractor and the Contractors have achieved imposing façades with a very different appearance in a very restricted location.'

75 King William Street using Portland Stone