Comparative performance analysis of Passivhaus and building regulation certified properties built in the United Kingdom

This paper compares the energy performance of Passivhaus and Building Regulations certified properties constructed in the UK. The Passivhaus criteria and construction principles are explained and the certification criteria for both standards are rationalised for a direct comparison. Relevant data was collected from case studies, building certifications, and the approved local planning submissions. The results reveal that, on average, Passivhaus properties were twice as thermally efficient from a numeric U-value standpoint, though are likely to perform even better due to the construction quality standards. This notion is backed up by the overall energy savings which on average come out to 75% compared to a conventionally built home.