Wealthy Aucklanders are pricing Waiheke Island out of the reach of local permanent residents, threatening the haven's population growth.
Rodney Dickens, economist of Strategic Risk Analysis, found most real estate deals were done by locals, yet the section and housing market was pitched more towards holidaymakers - dominated by rich city dwellers - so sales were suffering.
Waiheke was highly desirable but high asking prices kept deal numbers down because locals could not afford the prices being asked and even would-be bach buyers are balking.
"There is good reason to suspect that the continued low level of section sales reflects, to a significant extent, asking prices for sections being out of line with what would-be permanent residents can afford, as well as them being high compared to what would-be holiday homeowners can afford or are wiling to pay.
"It is likely that Waiheke Island has to a large extent priced itself out of the market for population growth. There are good reasons why Waiheke Island median prices can be above the national average (such as expensive holiday homes that are bought by wealthy Aucklanders, sea views, climate, environment, and so on). But when the median asking price excluding all properties with asking prices above $800,000 is 25 per cent above the national average house price, it seems reasonable to conclude that Waiheke Island has a housing affordability problem that will limit future population growth," he said.