Trust chairman David Cole was asked to comment on the latest home affordability report by Massey University, which said affordability of homes improved over the past quarter in Central Otago Lakes and and diminished in Auckland.
The university's home affordability index was calculated using interest rates, wages and house prices.
Mr Cole said on Friday housing affordability was a problem in New Zealand.
Queenstown had one of the most intractable problems in the country, he said.
"Instead of just measuring the small changes from one region to another, more focus is needed in understanding why New Zealanders have to spend so much more of their household income on housing than those in most other OECD [Organisation for Economic Co-operation and Development] countries," Mr Cole said.
The trust was an independent non-profit organisation which provided housing for low to moderate income households which contributed "to the social, economic and environmental wellbeing of our district", but which were "genuinely struggling to commit to the area because of the affordability issue".
Real Estate Institute of New Zealand (REINZ) Queenstown spokesman Kelvin Collins said one of the differences between Auckland and Queenstown markets was the resort did not have many old areas and so had fewer entry-level properties.
Auckland was also experiencing a resurgence of buyer confidence yet to be felt in Wakatipu, he said.
Nationally, affordability dipped 1.9% in the past quarter as the national median house price went up by 3%.
In the past quarter, four of the dozen regions showed improvements in affordability.
These were Otago-Lakes 9.9%, Waikato-Bay of Plenty 4%, Northland 2.4%, and Southland 0.9%.
Affordability deteriorated in Hawkes Bay by 11.4%, Auckland 5.8%, Manawatu-Wanganui 4.8%, Wellington 3.3%, Canterbury-Westland 2.6%, Nelson-Marlborough 2.4%, Otago 0.3% and Taranaki 0.1%.
