Dublin Airport has been granted permission to increase the number of night-time flights and extend operational hours for its second runway, sparking outrage among nearby residents who say the move will heighten noise pollution and health risks for thousands.
An Coimisiún Pleanála has approved a plan that raises the airport’s night-time flight capacity from an average of 65 to 95 flights between 11pm and 7am. The second runway — the North Runway — will now operate until midnight and reopen at 6am, expanding its previous usage window.
The decision has drawn sharp criticism from local groups, particularly the St Margaret’s The Ward Residents Group, who said flight paths could have been directed over uninhabited land, but instead were routed over residential areas. “This decision is reckless, short-sighted, and harmful,” the group stated, warning that communities in Malahide, Kinsealy, and Portmarnock would also be affected.
Despite the opposition, Dublin Airport operator daa welcomed the decision, calling it “a key step” towards unlocking the full potential of the North Runway and supporting future growth. It said the move would not dramatically increase the number of flights but would provide “headroom” for operations, particularly in peak seasons.
“We invested hundreds of millions in a second runway to benefit Ireland but have been hamstrung in using it effectively,” said daa CEO Kenny Jacobs. “This decision brings much-needed clarity for airlines, passengers, and investors.”
To address community concerns, the daa pointed to a Noise Quota Scheme that limits night-time aircraft based on noise levels, and said aircraft exceeding set thresholds would not be permitted to operate during night hours.
The Commission’s final ruling includes a cap of 35,672 night-time flights annually, citing a need to protect residential amenity and guard against excessive noise. It also maintained a noise quota system, stating that a quota alone would not adequately protect local communities from cumulative noise impacts.
Still, residents remain unconvinced. Niamh Maher, a spokesperson for the residents group, said the expansion will significantly disrupt sleep patterns and negatively affect health. “This does not take into account the real human cost of persistent aircraft noise,” she said.
Transport Minister Darragh O’Brien said he is seeking legal advice on whether legislation could be introduced to lift the airport’s 32 million annual passenger cap, a restriction imposed in 2007.
Meanwhile, the decision is expected to allow the daa to proceed with its wider Infrastructure Application, which includes expansion to accommodate up to 40 million passengers annually, aligned with national aviation policy.
Despite criticism over night-time activity, daa reiterated its commitment to community engagement and noise mitigation. “We don’t want more impact on communities — this is about long-term planning,” said Graeme McQueen, daa’s Media Relations Manager.
As Ireland faces continued population and tourism growth, the debate over balancing infrastructure development with community welfare remains unresolved.
