Oscar Leigh-Hales | Sustainability Consultant

Oscar joined ESC in June of 2026, bringing experience from his time as a sustainability advisor to a construction contractor where he developed specialist expertise in Whole Life Carbon Assessment, circular economy, and sustainability certifications.

He has broad multi-framework certification experience, having delivered BREEAM, WELL, LEED and SKA assessments.

Oscar continues to work for our clients across Whole Life Carbon Assessment, Net Zero Carbon strategies, and sustainability certifications, bringing a rounded perspective that ensures he can respond to the full range of client needs across a project’s lifecycle.

Qualifications

BSc.
MSc Sustainable Resources: Economics, Policy and Transitions
RICS Certified Whole Life Carbon Assessor
CFA Sustainable Investing

Professional associations: