The £2bn plus redevelopment is expected to begin construction between 2035 and 2038 under the New Hospital Programme.

Matthew Tulley, redevelopment director at Imperial College Healthcare NHS Trust said: ‘This marks a critical step in our journey to finally deliver the urgently needed new St Mary's, designed around the needs of our patients, staff and local communities. Our approach also builds on our long legacy of clinical breakthroughs, embedding research, education and innovation in the new facilities and surrounding area to help us solve the next generation of health challenges. 

 ‘I'm delighted that we have such a range of expertise in our project team, each a leader in their own field, to help us bring our vision to life.'

Stanhope will oversee the masterplanning process with architects Allies and Morrison leading on masterplan design. They will work alongside HOK, who continue as the hospital's design architects and join an experienced wider team, including Savills on planning strategy, Gillespies on landscape design, LCA on consultation and Gardiner & Theobald as project managers.

Redevelopment plans include a completely new, state-of-the-art teaching hospital and major trauma centre and wider regeneration, including further expansion of Paddington Life Sciences, the cluster of surrounding life sciences and data companies. 

Design work for the hospital and overall masterplan is now underway, with the next phase of public engagement and consultation planned to start in February 2026. The trust is aiming to submit a planning application in spring 2027.