The Housing Minister says he expects builders to pass on money saved through the waiving of development levies.
Government figures estimate the levy adds on average almost €13,000 to the price of a home.
The plans were approved by Cabinet three weeks ago, and will cover the costs associated with providing water and roads to housing estates.
It's believed it would help somewhat non-viable housing projects get finished.
However, many are skeptical developers will pass the savings on to consumers.
Housing Minister Darragh O'Brien says the aim of the move is to get more housing estates built:
"Is actually to get schemes that were on the cusp of viability to get them moving so people have more choice so people can get out of that rental trap or get out of that box room in the house and living with their folks as well.
"I expect a large portion, if not all of, of, of the levy reduction to be passed on and we're earnestly, uh, requesting that that be done."