From 1950s box to Passivhaus: our retrofit journey – Green Christian Workshop
Wednesday 4 March 2026 7pm
With Alex Bienfait and Stephanie Boucher
Stephanie and Alex bought a 1950s brick-built detached house with oil-fired central heating. They have extended and transformed it into a comfortable home that keeps an even temperature throughout, with no conventional central heating system. They did this by radically improving the insulation and airtightness of the house to the stringent Passivhaus standards. As a result, they are the first Passivhaus retrofit to be registered in Kent. They have added other environmental technologies, such as solar panels and a rainwater harvester to flush the toilets.
Stephanie Boucher designed the Green Christian website and was editor of Green Christian magazine for many years. Her husband Alex Bienfait is a retired Anglican minister. Together they manage a patch of woodland in Kent.
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