€18m has been spent to date by daa on buying out homes and insulating schools and homes located around Dublin Airport which are impacted by aircraft noise.
170 homes and three schools near the complex have so far been insulated, with 47 more offered it.
The airport operator has also bought out six homes through its Voluntary Dwelling Purchase Scheme (VDPS).
Daa says it is open to buying more properties from eligible homeowners who want to move and has offered to do so for 41 homes so far.
"Dublin Airport is a significant employer and economic contributor to the areas immediately surrounding the airport, and we're very conscious that our operations can have an impact on those living and going to school nearby," said Dublin Airport Managing Director, Gary McLean.
"We've already done a huge amount of work and spent a significant amount of money to reduce that impact, and we’re fully committed to doing even more," he said.
"Every week, members of the airport team are visiting the homes and schools of our neighbours to listen, learn and discuss how we can help them," he added.
The new figures come as the airport made available a new free Maploom portal which enables members of the public to see whether any of the insulation or purchase schemes are available to them by entering an Eircode.
Under the VDPS, Dublin Airport will buy homes in certain area for more than 30% above market rates.
The Residential Noise Insulation Scheme aims to lower noise levels by between 5 and 10 decibels.
A School Insulation Scheme also exists for schools and pre-schools in the area.
Daa has also proposed a new Residential Sound Insulation Grant Scheme that would provide up to €20,000 for noise insulation to around 600 homes, as part of its application to change the operating hours of the North Runway.
Recently An Bord Pleanála proposed lifting some of the restrictions on night-time flights, relaxing limits on the use of the North Runway, but with conditions.
However, daa described the proposals as a backward step and Aer Lingus said they were unworkable.
Many of those who live close to the airport or under the flight path have opposed any extension of night flight hours because of the impact it would have on noise.
Some local residents also oppose the lifting of the passenger cap at the airport, which is currently limiting the numbers of people who can use it each year to 32 million.
