The aim of this study is to establish the suitability of using existing net zero energy building (Net ZEB) solution sets to redesign Net ZEBs being moved into different climates. A case study was performed using the ENERPOS Building, located in Saint-Pierre, Reunion Island (cooling dominated climate), and moved to Christchurch, New Zealand (mixed heating and cooling climate). The study concluded that with the addition of a heating challenge solution set established from existing Net ZEBs in a similar climate to Christchurch, the ENERPOS Building was once again able to be a Net ZEB in the Christchurch climate. Also concluded is that the use of existing building solution sets is a good starting point for redesigning buildings to reach net zero energy, and that they can be used to design new Net ZEBs.