Overall, the scheme will nearly double the amount of space for pharmaceutical and technology companies. The Trust says the expanded campus could help create close to 11,000 additional jobs and generate up to \u00a31.3 billion more a year in economic activity.<\/p>\n
The emerging plans also include improved routes through the site, two new green public spaces \u2013 Mint Square and Canalside Square \u2013 and would restore the Grade II-listed Clarence Memorial Wing and western part of the Mint Building. Gillespies is advising on the landscape planning.<\/p>\n
The design team says the \u2018much more detailed\u2018 proposals released this week respond to feedback about the importance of \u2018accessibility and wayfinding\u2019 by creating more green spaces and incorporate insights from disability groups as well as ensuring the wider development responds to surrounding neighbourhoods.<\/p>\n
There have also been changes to the massing of some blocks which, taking on board comments from earlier consultation, will be reduced in height and stepped back from Paddington Basin.<\/p>\n
![\"\"](\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2026\/10\/heights-reduced.webp\")
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Diagram to show how the design has evolved \u2013 height and massing<\/p>\n
The scheme will be built out through a phased approach \u2013 the construction of the \u2018taller hospital on a smaller footprint\u2019 will get under way while the current hospital continues to run. Once HOK\u2019s tower is completed, services would move into the new hospital, releasing the rest of the site for redevelopment.<\/p>\n
Julian Redhead, chief executive of Imperial College Healthcare NHS Trust, said: \u2018[Much] of our estate is now very old and increasingly difficult to maintain, with building failures an increasingly regular occurrence, despite spending millions every year on essential maintenance.<\/p>\n
\u2018We have a once-in-a-generation opportunity to create a new hospital that meets the needs of our patients, staff and communities and regenerate the whole site into an expanded life sciences campus, attracting jobs and investment.\u2019<\/p>\n
Some parts of the St Mary\u2019s estate date back to 1845 and the Trust admitted it had the largest backlog maintenance liability \u2013 the estimated cost of work needed to bring its buildings up to an acceptable condition \u2013 \u2018in the whole of the NHS\u2019. It added that \u2018despite spending millions of pounds every year\u2019, there were still regular floods, outages and structural problems.<\/p>\n
The Trust believes that, without planning delays and through alternative financing, the hospital could be delivered by the end of 2023. However, if it has to wait for government funding through the existing New Hospital Programme timetable, delivery may not happen until 2045.<\/p>\n
![\"\"](\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2026\/10\/masterplan-uses.webp\")
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Masterplan uses<\/p>\n
Last year HOK also submitted plans to Westminster City Council for a 48,800m2 clinical life sciences hub on the site of the former Imperial College Medical School (see above). Although surrounded by the St Mary\u2019s estate masterplan, the proposal for the block between Praed Street and South Wharf Road does not form part of the Trust\u2019s emerging scheme.<\/p>\n
This separate though-linked development is backed by Bartlet Asset Management. Its aim is to support \u2018bench to bedside\u2019 innovation, from discovery in specialised laboratories to patient care. The teams says the project will allow clinical trials, diagnostics and \u2018emerging health technologies within one integrated setting\u2019.<\/p>\n
Elsewhere in Paddington Basin, Stanton Williams won planning approval for its new Fleming Centre in April<\/a>. Westminster City Council\u2019s planning committee voted unanimously in favour of the proposed canalside research centre next to Paddington Station.<\/p>\n That 3,800m2 scheme, which the practice won through a design competition in early 2025<\/a>, is backed by Imperial College Healthcare NHS Trust and and Imperial College London.<\/p>\n Wider site development and life science campus by Allies and Morrison \u2013 view of Paddington Basin looking towards Stanton Williams\u2019 proposed Fleming Centre<\/p>\n![\"\"](\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2026\/10\/07-Illustrative-view-of-Paddington-Basin-towards-Fleming-Centre-scaled.webp\")
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