Sarah is Technical Director in Sustainability at PHT member QODA Consulting and specialises in Passivhaus, low energy buildings, and retrofit. Sarah has worked on over 90 certified Passivhaus dwellings across the country including the first Passivhaus leisure centre. She has worked with Innovate UK, BEIS and Social Housing Decarbonsiation Fund projects, and with many clients helping them meet their climate emergency targets, and delivering a route to zero carbon. She is a an AECB expert advisor, an AECB Carbonlite Retrofit Assessor, and a member of the Retrofit Steering Task Group set up after the Each Home Counts review. She is the technical author for PAS 2035/2030 retrofit standard and the lead technical author for the BEIS Retrofit IWI guides, published (2021). She was also the co- author for the Passivhaus Trust’s Technical Guidance on Airtightness (2020).