People renting close to DART and Luas stations are paying 12% more than the average Dublin rent.
New research from Daft.ie suggests renters living close to the light rail network are paying a premium of €3,336 per year.
The research looked at the average rental prices for three bed semi and two-bedroom apartments within 1km of each rail stop between April 2018 and March 2019.
Commuters living along the coastline pay a particularly high price to live close to a DART station.
Sandymount is the most expensive station to live by, with rents averaging €2,905.
Lansdowne Road (€2,850), Dalkey (€2,810) and Grand Canal (€2,743) account for four of the top five.
On the Luas, homes close to Spencer Dock on the Red Line command the highest average rents (€2,858), while those living near O'Connell Street (€2,678) pay most on the Green Line.
The three most and least expensive Luas stops to live by are all on the Luas Red Line: with Spencer Dock averaging €2,858 - which is nearly double the least expensive Luas stop, Cheeverstown (€2,547).