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Susan Mantle


MEng (Hons) CEng MIStructE

Oxford University

Susan is an experienced and highly skilled engineer with over 19 years’ experience in the industry. She enjoys collaborating with design teams to achieve the best structural solution for a project and relishes the creative nature of the design process. In her role as Technical Director, Susan champions technical excellence across design and analysis and leads HTS+ Innovation and Research, our dedicated team who work on research projects to help resolve engineering challenges.

Throughout Susan’s career, she has worked on a range of diverse and interesting projects with some of the country’s leading architects, from private houses to large residential schemes, commercial buildings, museums, schools and theatres. These include both new-builds and the refurbishment of historic structures, on green field and complex urban sites.

Susan is a member of the London Energy Transformation Initiative (LETI) and has been involved in Pioneer Projects and the Whole Life Carbon workstream, contributing to the production of the LETI whole life carbon and embodied carbon one-pagers.

Chartered in 2008, Susan joined Heyne Tillett Steel in 2010 and was made Technical Director in 2013. Susan became a Director in 2023, and leads HTS’s CSR projects, HTS+ Innovation and Research and champions technical excellence across design and analysis.