Associate Director - (Energy & Sustainability)

Mattinson Partnership is seeking an Associate Director - Sustainability for their London office. This strategic leadership role involves overseeing sustainability delivery on large-scale projects, managing a high-performing team, and advising clients on sustainability matters. Candidates should have strong experience in sustainable building design, technical expertise in energy modelling, and a passion for environmental impact. The position offers structured career progression and flexible working options.
A leading engineering consultancy is looking for an experienced Associate Director – Sustainability to join their London team.

Renowned for delivering innovative, high-performance building solutions, this practice sits at the forefront of sustainable engineering in the built environment. They partner with ambitious clients on complex, design-led projects and are widely recognised for their work in net zero carbon, operational energy performance and human-centric design. Beyond project delivery, they actively contribute to industry research and best practice, helping to shape the future of sustainable development.

Alongside technical excellence, they’ve built a genuinely people-first culture — offering structured career progression, flexible working, strong wellbeing support and a comprehensive benefits package.

The Role: Associate Director – Sustainability

London (Hybrid) | Senior Leadership | Client-Facing

This is a strategic leadership position within a nationally established Sustainability Group. You’ll take ownership of complex sustainability workstreams, lead and develop a high-performing team, and act as a trusted advisor to clients on flagship developments.

Key Responsibilities
• Lead sustainability delivery across large-scale, high-profile projects
• Act as the key client contact for sustainability matters
• Oversee team workload, resourcing and programme management
• Provide line management, mentoring and technical leadership
• Support financial oversight, including fees, forecasting and resource planning
• Develop and deliver sustainability and energy strategies from concept to completion
• Lead environmental certification processes (BREEAM, WELL, HQM and equivalent)
• Drive net zero and whole-life carbon strategies
• Oversee embodied carbon analysis, circular economy strategies, operational energy modelling, dynamic simulation and overheating assessments
• Contribute to research, innovation and wider industry engagement initiatives

About You

You’re currently operating at a senior level within a sustainability or engineering consultancy and are ready to step into a broader leadership remit within a highly respected practice.

You will bring:
• Strong experience in sustainable building design and consultancy
• Technical expertise across selected areas such as energy modelling, Part L compliance, NABERS UK, embodied carbon, net zero strategies or environmental assessments
• A detailed understanding of London planning requirements
• Chartered status (or equivalent professional recognition)
• Proven experience leading multidisciplinary design teams
• Commercial awareness and confidence managing project performance
• A passion for delivering meaningful environmental impact through engineering

This is an opportunity to take on a visible leadership role within an engineering consultancy that is genuinely shaping the future of sustainable building design.

If you’re interested in finding out for reach out to Ethan Williams on 02079602589 or click apply.