Dublin Airport could be hit with a bill for €6 million to insulate homes in the area from nighttime air traffic noise.
It comes after Fingal County Council made it a condition of easing restrictions on the airport's new runway, which is due to open next Wednesday.
The original planning permission curtailed flights between 11 pm and 7 am but the daa has successfully argued for the runway to be used between 6 am and midnight according to the Irish Independent.
Another condition of the planning permission, which included a night-time aircraft movement cap, has been replaced with a noise management quota system.
Up to 300 homes in the vicinity could be eligible for the insulation grant.
In a statement, the daa says the planning decision "helps provide the operational flexibility required by Dublin Airport to enable the regrowth and development of international connectivity at Ireland’s main gateway."
Fingal councillor Dean Mulligan says it's a big blow for residents;
"Particularly for residents overlooking the flight path, the restrictions were in place for health and safety reasons and the noise insulation scheme for zone a and part of zone b doesn't go far enough"
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