ACC began reviewing its working from home policy in September. (File photo) Photo:
The public service union is taking legal action against ACC, saying it gave staff less than an hour's notice it was changing its work from home rules.
ACC has told staff they must be in the office three days a week, rather than two.
The Public Service Association (PSA) said ACC ignored the collective agreement requirement to consult with the union on policy changes.
PSA national secretary, Fleur Fitzsimons told Morning Report people applied for jobs at ACC because of the three day work from home allowance.
"ACC actually went out of their way to advertise three days from home, and people have reported to the union that they feel horribly misled, deceived and cheated," she said.
"They applied for these roles and then planned their whole lives around these working from home arrangements, only to have them taken off them."
The PSA had filed a claim with the Employment Relations Authority.
"Obviously we'll be willing to attend mediation and try and settle this. It should never have come to this," Fitzsimons said.
ACC said it could not comment because it was unaware of any legal action.
Fitzsimons said the union wanted ACC to talk with staff about why working from home was important to them.
"If they do that what they'll find out is that productivity increases, people will report more concentration on tasks, and morale's gone up."
ACC began reviewing its working from home policy in September, saying being in the office helped with engagement, training, and improving culture and teamwork.
But Fitzsimons said staff reported managers made few attempts to connect with them on days they were in the office.
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