- By Baker Ruff Hannon
- Posted 12 November 2019
Baker Ruff Hannon Helps Passivhaus Trust Produce New Cost Guidance
Technical Guidance - Passivhaus Costs
At the end of October 2019, the Passivhaus Trust published a new technical guidance note on Passivhaus Costs which Baker Ruff Hannon helped produce;
The report demonstrates that innovation costs associated with early Passivhaus projects are now reducing as the methodology has become more widely adopted. This new analysis shows that the extra costs associated with building to the Passivhaus standard in the UK has reduced over the past three years and, as of 2018, best practice costs were around 8% higher than comparable non-Passivhaus projects.
However, removing the costs associated with quality assurance (to eliminate the performance gap this should be done regardless) and considering further development of skills, expertise and supply chain maturity, indicates that extra costs could come down to around 4% or less. In the context of other factors which result in higher build costs (high quality, high performance building products, design form, ground conditions etc), this becomes a minor uplift for a far superior product in terms of running costs, carbon emissions, and additional co-benefits such as comfort & health levels.
Overall, this study has shown that the Passivhaus standard in the UK can be achieved now for a modest extra-over cost and this is likely to reduce to nominal levels if adopted at scale. If you are considering delivering the Passivhaus standard on any of your developments and would like to talk to us about this report and the insights we have gathered over many years of delivering projects to this standard then please do not hesitate to contact us on [email protected] or 01823 251356.