Redevelopment of Chancery Rosewood Hotel, London

The Chancery Rosewood Hotel at 30 Grosvenor Square is a redevelopment of the Grade II listed US Embassy building in Mayfair, London W1.

Project background

Having originally been designed by Eero Saarinen and built in 1960 to house the US Embassy, this historic building has been redeveloped in a £400 million project.

The site now houses the luxury Rosewood Chancery Hotel, as well as 6 flagship retail units, intended to revitalise this public space. The hotel offers 137 rooms, 5 restaurants, a spa and a 1000-person ballroom. It will welcome its first guests in September 2025.

The building’s original features and mid-century design have been retained, including its iconic golden eagle statue which remains on the facade and is overlooked by the hotel’s new Eagle bar.

Deliverables required

MultiCAD’s expert team provided

• Electrical Coordination
• BIM Modelling
• COBie asset inputting

MultiCAD provided co-ordination for a large electrical contractor including full BIM to PAS1192-2 on the client’s Common Data Environment (CDE) and COBie specifications, at each information exchange, in line with the Asset Information Requirements (AIDP).

Main challenges

More than 4,000 individual elements of the building were disassembled, refurbished and reinstalled into the building in the final construction phase. These include the original stone cladding for the interior, mullions and window handles, and of course the building’s iconic golden eagle sculpture. In addition, the Grade II listed facade and diagrid ceiling were restored and repurposed.

The development needed to stay true to the history and original character of the building, while also integrating new, modern electrical services with full co-ordination across the construction project.

Solutions provided

Highly accurate BIM (building information modelling) to ensure there were no clashes between existing building features and new electrical services. This allowed any potential clashes to be resolved before materials were ordered and any work was done on-site.

Providing BIM on the client’s Common Data Environment and COBie inputs, to create a single source of project information relating to the electrical services, accessible by all sub-contractors. This facilitated a smooth and accurate exchange of information among relevant stakeholders.

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