This week in Building News Sam Stacey, Challenge Director at Transforming Construction, UKRI, argued that we can take learnings from the way that Thomas Crapper’s valve-and-siphon design was implemented in British homes across the country in the early 20th Century – a huge change from the previous cold and dark toilets in outhouses.

Particularly, Sam notes the need for a ‘financial leg-up’ initially, with subsidies and financing opportunities. As well as this, he highlights that for most homeowners the changes will need to be low-effort, with light touch from the homeowner.