Many had been forced to leave the region when independence failed. That related in particular to the Queenstown market.
Queenstown and Central Otago had been neglected by the corporates. However, the private and not-for-profit operators had seized on the opportunity, with major projects either proposed or in the early stages of construction, Mr Gunn said.
They included villages in Cromwell, Clyde, Alexandra, Wanaka, Arrowtown and Queenstown.
were in addition to the Aspiring Lifestyle Retirement Village, in Wanaka, which had proved popular, alongside projects such as Observatory Hill Retirement Village, in Oamaru, and proposals CBRE was aware of in Mosgiel and Balclutha.
Key demographics for Queenstown-Lakes and Central Otago districts were favourable, as both benefited from a high percentage of European ethnicity and home ownership rates respectively, he said.
"These metrics are an important relationship dynamic in favour of retirement village development."
An emerging trend had been the "astute" retiree's willingness to travel much greater distances to benefit from retirement opportunities, Gunn said.
The wider Queenstown and Central Otago districts had gained favour with wealthy baby-boomers, one of the drivers behind a flourishing local property market.
The exponential growth in house prices observed locally had been, in part, a catalyst for attracting the eye of new development.
Development was not without its risks, he said. It was likely not all proposed developments CBRE was aware of would proceed.
Examples of proposed retirement village developments in Queenstown that had been withdrawn from the market included Shotover Lifestyle Village, withdrawn during 2016, and Sanctuary at Remarkables Park.