This 2014 series looks at the role of architects on Kiwi building projects, as they respond to the challenges of budget, environment, site and client expectations. In this last episode of the series, host Peter Elliott asks if "architectural design can be financially achievable". He meets company Herbst Architects, and talks space, emotion and design for a steep Waiheke Island section, and a modular bach. Two fathers share the build of a John Irving-designed beach house; and a Point Chevalier house designed by A Studio aims for zero energy. Plus Elliott recaps the series' grand designs.