The Deputy Mayor of South Dublin County Council says a plan to install 14 public loos for €3m 'should be flushed down the toilet'.
The self-cleaning facilities are being priced at around €250,000 each.
The motion was debated at a county council meeting back in October.
The Irish Mirror reports that two locations are being trialled for an evaluation.
If that is successful, it could see the public toilets on the high streets of each of the seven local electoral areas of the county.
David McManus, Deputy Mayor of South Dublin County Council, told Newstalk Breakfast he is "not impressed at all".
"The priority for myself and my fellow Fine Gael councillors is to focus on getting 4,500 new council homes built".
"They're self-cleaning toilets that they have in Paris: to be honest I think they must be gold-plated to cost €3m for 14 public toilets.
"At the meeting a feasibility study was agreed, but in my view the study should be flushed down the toilet.
"We have people sleeping rough on the streets, and to be honest I would rather build a homeless family a home for 250,000 than to get them a pot to go in".
Councillor McManus said while public amenities are important, the money has to come from somewhere.
"We have to balance the books, money does not grow on trees.
"If we keep going the way we're going, we will have to increase property tax and we will have to increase commercial rates".
"I think this is a nice to have idea, if money grew on trees and we had an extra €3m hanging around - unfortunately we don't".