Dynamic professional couple Belinda and Cameron enjoy entertaining but their current home is not working for them. Belinda wants a more entertaining-friendly space while Cameron is over the constant traffic noise.

Georgia and John and their three small kids are feeling cramped in their current home. Georgia is tired of the impractical layout of their house and wants to replace the pool with a sizeable backyard. John thinks by increasing the floor plan of their Queenslander the solution is underneath their current living space.