Providing hospital-level care got more government funding than rest home level care, and Nazareth did some of that. Bigger elder care operators also made money by providing units and refurbishing and retenanting them - Nazareth had no separate units.
"It's really difficult for small facilities in an environment with bigger services."
The closure was a difficult decision, made after a lot of consideration.
"We are all very sad about it. It wasn't easy at all."
The order hasn't decided what to do with the Nazareth buildings. Sister Ann said they were taking business advice.
The rest home is on the same title as Mount St Joseph, the two-storeyed "foundation and heart-place" of the Sisters of St Joseph of Nazareth in New Zealand.
It will carry on being used as a conference and gathering centre, and the archives and wetland restoration also on the property will stay. Whanganui sisters will continue their work in counselling, visiting, crafts and ecology.
The Catholic order has had three aged care facilities in New Zealand, one in Auckland and two in Whanganui. The second Whanganui one, Quinlan Court, is for 20 residents capable of independent living. It breaks even and is staying open.
The three facilities have been managed by the holding company Mary MacKillop Care. Sister Ann said it was handling the closure of Nazareth very well.
"I think they're very clear on their responsibilities."
The New Zealand-based Sisters of St Joseph of Nazareth fused with their Australian counterparts in 2013, to become Sisters of St Joseph of the Sacred Heart. Since then their New Zealand headquarters have been in Auckland.
Their world headquarters are in Sydney. There are about 800 sisters worldwide, mostly in Australia. New Zealand has 80, with 20 of those in Whanganui.