77 Welbeck Street, London, W1G
Shiva Hotels
2 years & 3 months
£17.5m
City of Westminster
Overview
Our Wellbeck St project for Shiva Hotels, located behind Oxford St in the bustling City of Westminster, presented a series of complex challenges that required a strategic and proactive approach. The project encompassed the demolition of the ten-storey RC structure, disconnection and diversion of services, secant piling, deep basement dig, and the construction of a nine-storey RC frame. With programme efficiency, we developed the new hotel structure at 77 Welbeck Street, despite the project’s challenging urban environment, and completed works three weeks ahead of schedule.
Relevant Experience
Acting as principal contractor, we brought our stakeholder-focused approach to the demolition of the ten-storey car park, excavation of a four-storey basement, and construction of a slipform core and nine-storey reinforced concrete frame to create the new hotel.
Our scope included asbestos removal, soft strip, demolition, extensive ground investigations, and enabling works. We installed a 900mm secant-piled wall, excavated 20,590m³ of spoil and delivered a 17m deep basement box alongside major utility assets, including the Post Office Tunnel directly beneath the site.
A robust waterproofing strategy, intricate raft construction, and complex lift pit installation were all completed with precision.
Programme efficiencies were achieved through intelligent logistics. A corner gantry and tele-dipper accelerated excavation, slipform construction minimised storage needs on the tight site, and a panel formwork system sped up slab cycles. These decisions not only reduced the works duration but also delivered significant commercial savings for the client.
Operating in a sensitive conservation area, we maintained excellent relationships with Westminster City Council, neighbouring residents and local businesses.
The Wellbeck St project was successfully completed ahead of schedule and within budget, culminating in a seamless handover and integration with the main contractor. This project exemplifies our commitment to innovation, sustainability, and efficient project delivery in challenging environments.
Minimising noise, dust and vibration through floor-by-floor demolition, proactive liaison, thoughtfully planned road closures and illuminated pedestrian gantries ensured the project remained community-focused throughout.
The project required 7,981 m³ of ready-mixed concrete, and through collaboration with our supplier, we ensured 70% (5,588 m³) of this was more sustainable, which saved 721,597t of CO₂e, a 27% reduction in the whole project. In excess of 6,000 m³ of demolition arisings were removed from the site for recycling. Our considerate approach earned an ‘excellent’ CCS rating.
The project demonstrated our ability to deliver complex structural engineering solutions on a highly constrained urban site, coordinating demolition, deep excavation, and high-rise construction with precision and efficiency. 77 Welbeck Street stands as a testament to our ability to turn complex constraints into exceptional outcomes for our clients.
