New Zealand is the 53rd largest nation with the highest GDP in the world, with an annual GDP of 186.4 billion dollars. The country depends greatly on international trade with countries like China, United States, Japan and Australia. These are some of the most expensive countries in New Zealand. The average cost of renting a one bedroom apartment within the city costs 866.76 NZ$ to rent an apartment outside a month is 783.88 NZ$. New Plymouth is the least most expensive city of the top 10 most expensive cities in New Zealand. Click the next ARROW to see the next City!