Grand Designs New Zealand

Young builder Zac wants to save money by building his own home. The problem is: he's promised his mum he'll build hers at the same time, and both on top of a sand dune. Who'd be mad enough to do that?

Sustainability experts Karl and Amelie have a dream of a house that is heated solely from the sun. But on a steep, exposed, windy Wellington hillside site, they're challenged right from the start.

Photographers Johannes and Jo take on a heritage restoration, adding a bold architectural statement home next-door. Will the marriage between the old and the new prove more than they bargained for?