The total capacity will increase to 10,500 people, which will allow it to hold more games and attract concerts to the venue.
Local Green Party Councillor, Liam Sinclair, says it should be completed by 2022.
"It means that it is up to UEFA category four, which means it can hold any European match, including Champions League.
"More people can get into matches that are on there and it also makes it more accessible for concerts and festivals, so we will be actively trying to get more of that sort of event happening in this venue."
The Part 8 Planning Consultation has commenced on the proposed new North Stand at Tallaght Stadium, and the associated West Stand and South Stand alterations.
You can view the plans on the portal and make submissions until 13th August, 2020 here https://t.co/Ya9AfnptXO pic.twitter.com/jBnn7l76x8— South Dublin County Council (@sdublincoco) July 12, 2020
Last month, Shamrock Rovers missed out on a potentially huge earner as they faced European giants AC Milan in their home venue.
Thousands of fans would have been expected to turn out to see Rovers take on the Italian side in Europa League, resulting in a welcome surge in gate receipts, but due to Covid-19 crowd restrictions, the match was played behind closed doors.
