Steven Odunmbaku, Principal Technical Specialist, NHBC

Steve is a Chartered Civil and Structural Engineer with over 35 years’ experience in consulting – designing industrial, commercial and residential developments and infrastructures using the most common materials in UK and Ireland. Steve also has Local Authority experience as designer and AD-A compliance checker, before joining NHBC in 2011. Since joining NHBC, Steve has held a number of roles within Technical Operations and Standards, Innovations and Research (SIR) departments, where he currently leads in the development of a number of chapters within the NHBC Standards including the new Chapter 4.6 – ‘Engineered fill’. Steve is a member of a number of BSI committees and working groups, as well as a member of the CROSS panel. Steve contributed to the recent update of IStructE’s publication – ‘Subsidence’.

Andy Clark, Specialist Geotechnical Engineer, NHBC 

Andy is a Chartered Civil Engineer with over 25 years’ of experience of construction, consulting and now here at NHBC. His career started with Barr Construction in the mid-1990s to 15 years in consulting in the ground engineering departments of Jacobs and Atkins in Glasgow. Andy has since been at NHBC for over 7 years within the Land Quality Service team. Andy has developed a broad range of geotechnical experience with a particular interest in earthworks and ground improvement. Andy also has extensive experience with major infrastructure projects at the design and build stage such the at the M74 Completion in Glasgow, Borders Railway project from Edinburgh to working on the Shetland Gas Plant with the French oil and gas company TOTAL.

Carla Stephen, Specialist Geotechnical Engineer, NHBC

Carla is a Chartered Geologist with over 20 years’ experience in contracting and consulting, Carla has a broad range of industry experience working on large projects in the UK and USA, with a particular interest in earthworks for residential developments. Carla has been with the Land Quality Service team at NHBC since 2021. Carla is focused on working with NHBC’s clients and house builders to highlight geotechnical risks and suitable remedial options on a site-by-site basis. She is a strong advocate of the benefits of early and continual engagement and communication with the whole project team. She has a breadth of experience in the following sectors: housing, commercial, flood mitigation, infrastructure, gypsum mining and education including working on projects such as the Aberdeen Western Peripheral Route and the Moray Flood Alleviation Schemes.