Apartment rents in Auckland Central West fell 9.7 per cent over the September quarter, compared to the same period a year ago, and rents in Auckland Central East fell 5.6 per cent; both areas have a significant student population.
Developers have also been less likely to want to build apartments in Auckland, with consents down 50 per cent for the three months to August, compared to the same time last year.
"Not only can they not get financing for these projects, without having people come into them there is not as much activity," Olsen said.
"A lot of the time these apartments are bought by investors in the inner city to rent out to others, particularly international students."
There were 58,000 fee paying students on a visa in New Zealand at the end of September 2019, but that had dropped to 41,000 by the end of September this year; a 30 per cent drop in numbers.
In January, before the impact of Covid-19 began to set in, Olsen said the wider rental market showed no signs of slowing. Sustained population growth, lower home ownership rates and increased rental costs (due to stricter standards) were expected to keep the pressure on rents throughout 2020.
-RNZ