The Taoiseach has raised the possibility of using "bespoke legislation" to ensure a major sewage scheme for Dublin does not face further delays.
The Greater Dublin Drainage scheme, which has been held up for seven years, is now subject to a judicial review from an objector which could jeopardise local authorities giving planning for new homes in the capital in future years.
Speaking at the Construction Industry Federation conference in Dublin, Micheál Martin said: "We will look at bespoke legislation if we have to ... we cannot tolerate delays."
The Greater Dublin Drainage scheme would provide sewage services to half a million people in Meath, Kildare and the capital.
The Taoiseach said legislation could also be used to ensure a major project, which would see water supplies piped from the Shannon to Dublin, proceeds.
The Eastern and Midland Water Supply is seen as critical in ensuring the capital and the east of the country has sufficient water for new housing.
He said there will be a memo coming to Government on the issue.
"We need to accelerate decisions and reduce the delay impact of judicial reviews which is a bigger issue than most other countries across Europe," he said.
The Taoiseach also said "the Budget will have supportive measures in respect of housing."
He added: "We are looking at closing the viability gap in terms of apartments."
He said the most critical issue facing the country was housing and the delivery of key infrastructure.
