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 €4 billion development over 350 acres to the east of the airport comprising mainly office space.
There is no planning permission for the development, and funding has yet to be arranged.
But the DAA says it fits in with development plans of Fingal County Council. It says this would become an economic hub targeting foreign direct investment.
Infrastructure would be put in place to enable executives based at the Dublin Airport City to get from their desks to airport check-in an average of six minutes.
They say it would mean 600,000 square feet 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 €1 billion a year to the Irish economy.
