I have been a Certified Passivhaus Designer since July 2021, providing detailed building‑physics–led input at early design stages to optimise fabric performance, thermal performance, airtightness strategies, and whole‑building energy modelling. My work on several residential schemes has involved coordinating with multidisciplinary design teams to ensure that form factor, envelope specification, construction detailing, and MEP strategies are aligned with the rigorous criteria required to achieve full Passivhaus certification.