T5 Arora Sofitel Hotel

One of the largest luxury airport hotels in Europe, the 608-bedroom, five-star Arora Sofitel Hotel is located adjacent to T5 at Heathrow. The extensive basement houses one of London’s largest conference facilities. Top-down construction techniques were used to control ground movements during construction of the 12m-deep basement, which is situated 10m from the Piccadilly Underground line. Distinctive structural features include five atria linking the hotel blocks and an impressive 40m pedestrian bridge, comprising two 20m spans, which connect the hotel to the T5 car park and airport terminal. The hotel accommodation blocks are constructed of pre-cast concrete wall and slab elements.

Key Innovation

An integrated substructure and superstructure construction methodology accelerated the construction programme by ‘jump starting’ the hotel superstructure while top-down substructure construction progressed below.

Other innovations include the extensive use of roll-mat reinforcement for the basement raft, thereby dramatically reducing the number of operatives working within the basement and reducing the construction period within this zone.

RBG was engaged by LOR as structural and civil engineering designers and for input into construction methodology.

Project Value
£180 million
Year Completed
Building Metrics
Total Area: 70,000m²
Levels: 4 + 3 basement levels
Hotel, Leisure and Conference
Arora Hotels

Primary Contractor
Laing O’Rourke
EPR Architects
Robert Bird Group Services
Structural Engineering
Civil Engineering

Additional Information

Additional information is available for you to view regarding services and sectors RBG provide.


Robert Bird Group provide outstanding innovative and buildable structural design solutions in all sectors across the globe.


Robert Bird Group’s Civil Engineers provide engineering design services from concept and planning through detailed design on to construction and maintenance, with the potential for ongoing management and advice for the operating life of a project.


Hotels take many forms, from newly constructed individual buildings to boutique or heritage conversions. They may be combined with other uses in a mixed-use development, perhaps vertically stacked within a single building,


Future growth forecasts for aviation passenger travel are staggering, with the IATA predicting that global passenger numbers will double from 2015 to 2035.

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