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WELLINGTON， Jan. 27 (Xinhua) -- The housing crisis in New Zealand's biggest city is spilling into the rest of the country and making homes increasingly unaffordable for ordinary people， according to a study out Friday.
A quarterly study from Massey University showed continued declines in home affordability across the country in the last quarter of 2016 as prices rose in Auckland， home to a third of the population.
The report showed affordability declined by 2.8 percent nationally， with some big declines in the North Island regions of Taranaki， Northland and Manawatu-Wanganui， and in the South Island regions of Southland and Nelson-Marlborough.
"This has largely been driven by rising house prices across many parts of New Zealand. While it's impossible to quantify the extent， the continued spillover of Auckland house price levels into other regions may be a factor，" author Associate Professor Graham Squires said in a statement.
Auckland and the South Island's Central Otago Lakes - a major holiday resort region - remained the least affordable regions - at 56 percent and 45 percent less affordable than the rest of New Zealand respectively.
Auckland's median house price reached a new high in November of 851，944 NZ dollars (617，745 U.S. dollars)， a year-on-year rise of 11.4 percent.