Use the options below to decide which types of cookies you would like to enable or disable. You can read more about each cookie type by clicking on them below or view our cookie policy.
These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. Without these cookies, some parts of our site or the service being requested will be impossible to provide.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of the site. They help us to know which pages are the most and least popular and see how visitors move around the site.
All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
We use statistics cookies to analyse traffic on this site. To find out more review our cookie policy.
This refurbishment of the Grade II listed former US Embassy building, located in the heart of Mayfair London, will create a luxury hotel with 137 guest rooms, five restaurants, five shops, a spa and a ballroom.
Location: Mayfair, London
Client: Rosewood Hotels (Qatari Diar)
Main contractor:Multiplex Construction Europe
Engineer:AKT II
Architect:Reardon Smith Architects
Tonnage:900 tonnes
Completion date:May 2022
The project
This project awill transform the former US Embassy building in Mayfair into a luxury hotel facility, complete with spa and ballroom. Situated within the Mayfair Conservation Area within the City of Westminster, the 1960s concrete structure features a Grade II listed façade which was retained.
Severfield provided the fabrication, delivery and erection of structural steelwork and decking for the complex ballroom trusses inclusive of a mezzanine floor between the bottom booms, the north and south atrium and the roof.
The ballroom trusses were composed of 12 primary trusses running east to west and three primary trusses running north to south, with a larger quantity of smaller internal trusses to tie the structure back to the north and south cores.
The height of the trusses created logistical issues for our production teams when moving them around our fabrication facilities at our Dalton and Lostock sites.
This required a change to the original design, with some components being bolted together rather than welded. The scale of the trusses also required the arrangement of bespoke transport and lifting arrangements on site.
Our on-site construction specialists were also faced with the challenge of working with a retained Grade II listed façade and working around temporary works and cruciform columns provided by other contractors.
The interface between the columns and the trusses was rather intricate and required the construction team to significantly change the planned erection sequence. Despite these challenges, the project was completed on time in May 2022.