The Dublin Airport Authority has announced plans for what it describes as a new city to be built near the existing terminal complex.
The DAA wants to build a €4bn development over 140ha to the east of the airport, comprising mainly office space.
The development has yet to get planning permission and funding must also be arranged.
However, the Dublin Airport Authority says the plan fits in with the development plans of Fingal County Council.
The DAA says it would become an economic hub targeting foreign direct investment.
Executives based at the Dublin Airport City would have a high-speed people mover to connect with the new Metro North station and would be able to get from their desks to airport check-in in an average of six minutes.
It says it would mean 55,000m2 of office space along with retail and hotel facilities and an aviation college.
Although it could take 20 years to build, the Authority claims it could add €1bn a year to the Irish economy.
