The aviation regulator has earmarked close to €1.3bn worth of Dublin Airport projects for assessment as part of its new 'StageGate' monitoring process.
The 17 projects identified for entry into the process include a €300m Pier 5, a €170m tunnel under a runway to provide access to the airport's west apron, and €200m to upgrade baggage screening in both terminals.
The regulator intends to award a contract to a suitably qualified partner later this month to help it undertake an ongoing cost assessment of the projects over a five- year period.
That assessment is expected to begin next month.
The projects are all part of the DAA's near-€2bn capital investment programme for the next four years.
The regulator brought in the new StageGate system as part of the determination it published to lower charges, as a way to more closely monitor infrastructure development by DAA, and to allow for ongoing flexibility for the cost or scope of expensive building projects at the airport.