Our Client is an innovative building services consultancy delivering high-performance mechanical, electrical and public health (MEP) design solutions. With a strong focus on building performance, energy efficiency and low-carbon outcomes, the business works collaboratively with design teams to create comfortable, compliant and future-ready buildings. Role Overview The Sustainability Division is seeking a skilled Building Physics Consultant to support the analysis and optimisation of building performance across a range of projects. The role will focus on thermal comfort, energy use, overheating risk and regulatory compliance, working closely with MEP engineers, sustainability consultants and external design teams. This role is ideal for someone with a strong technical background in building modelling who is passionate about improving real-world building performance. Key Responsibilities Deliver building performance modelling and analysis across all project stages Undertake dynamic thermal modelling (TM54, TM59, TM52) Carry out overheating risk assessments and thermal comfort analysis Support compliance with UK Building Regulations (Part L and Part O) Produce SAP and SBEM calculations where required Assess energy demand, operational energy and passive design strategies Provide input into fa ade, glazing, shading and fabric performance Support sustainability and net zero carbon strategies Collaborate closely with MEP engineers to optimise building systems Prepare clear technica