We are creating the Fleming Centre – a world-class facility for research and public engagement focused on tackling antimicrobial resistance (AMR). Based at St Mary’s Hospital in Paddington, where Sir Alexander Fleming discovered penicillin, the Centre will bring together researchers, clinicians, policymakers, commercial partners and the public to create global change.
This new building will be the first part of the wider redevelopment of St Mary’s Hospital and a flagship project within the Paddington Life Sciences development and the Imperial WestTech Corridor.
Our proposal: Designing a space for science, collaboration and impact
The winning concept for the Fleming Centre, designed by Stanton Williams, builds on the site’s heritage and its future as a global hub for innovation. Key features include:

Your views matter
We are continuing to develop the design for the Fleming Centre and want to hear from you. Please share your feedback to help shape the detailed proposals.

Next steps
We are progressing through the design and planning process with further opportunities for engagement along the way.
- November 2024 – Design exhibition and public feedback events
- January 2025 – Winning design announced
- Spring 2025 – Further design development and consultation
- 2026 – Planning application submitted
- 2028 – Fleming Centre opens, marking 100 years since the discovery of penicillin at St Mary’s