Mike and Lowen are passionate about conserving water and, like many, decide to put a couple of water tanks in their new house. But these are massive, custom-designed steel anchors that support the house above the ground. 

Greg and Trish plan to subdivide, sell the heritage cottage at the front of their block and build a new house at the back. After setbacks and a rethink, they find themselves embarking on an epic upsizing adventure.