Impossible Builds follows the exploits of pioneering families building extraordinary 'kit homes' in situations where conventional construction techniques prove impossible.

Jamie Feilden's 60-acre farm doubles as a charity for urban youth. To fund it, he now plans two prefabricated elliptical cabins on a remote slope. They'll feature timber decks, open-plan living, and green roofs—though weather may delay the build.

Delaval and Veronica are restoring 450 acres for conservation and funding it by building a treehouse in Swanton Novers Wood. A Scottish firm constructs it in 7 sections to minimize damage to the woodland habitat on delivery.

Builder Justin and wife Emma tackle an ambitious modular home build on Scotland's remote North Uist.

Paul and Trent want to escape their busy lives to a 600-acre conservation property.