The population of Dublin could rise by more than 150,000 over the next three years.
A new study says a hard Brexit could add to the population pressures in Dublin, with the current population of the capital standing at around 1.2 million.
The study by Future Analytics Consulting - reported in the Irish Independent - said the population in the capital could rise by 7.5% to 11.5% depending on the severity of Brexit.
Between 2011 and 2016, Dublin City added 27,000 residents, so the numbers in today's report would represent a huge expansion for the city.
The figures would put further pressure on the housing market.
The increase of 150,000 in three years appears to be the start of a much bigger growth of population as the CSO projects it will hit 2.2 million by 2031.