Better Net Zero Buildings

The Passivhaus Answer to the Carbon Challenge

The publication of the Future Homes Standard and Version 1 of the UK Net Zero Carbon Buildings Standard marks a significant step forward for low-carbon building policy in the UK. But as “net zero” becomes more widely adopted, it is increasingly clear that not all routes to net zero deliver equally good outcomes. Buildings designed around electrification and future grid decarbonisation may meet carbon targets on paper, yet still place unnecessary strain on the energy system, expose occupants to high running costs, or fail to provide healthy and comfortable conditions in use.

This position paper sets out a definition of better net zero buildings – grounded in minimising operational energy demand and peak load, prioritising health and comfort, closing the performance gap, minimising whole life carbon, and optimising renewable generation.

It argues that these outcomes are best achieved not through carbon balancing alone, but through a robust, proven approach to design and delivery. In the current UK context, the Passivhaus standard provides the strongest established route to achieving them in practice.

For policymakers, clients and practitioners alike, this paper offers a framework for moving beyond “net zero ready” towards buildings that perform well, cost less to run, and support both people and the wider energy system.

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