Plans for the new swimming pool have been greeted with cautious optimism by campaigners.
The plans were unveiled at the recent Lucan Area Committee meeting of South Dublin County Council.
The complex will be situated beside the leisure centre in Griffeen Valley park.
The plan includes two pools, with the smaller pool having a moveable floor so it can be used by people with reduced mobility.
The complex will also have a gym, an exercise and training centre and a cafe.
Local politicians welcomed the news but campaigners say they have some reservations about the plans.
Cllr Danny O’Brien said: “As a councillor who has worked on this project since I was elected in 2014, it is with great pride that I can witness this amazing amenity progress to this stage.”
Tanaiste Frances Fitzgerald also welcomed the news, saying: “I am delighted to see the design plans for the pool and to see the project continuing to progress positively.
“The plans include changing rooms, a gym, cafe, wellness area, a garden space and more.
“The design plans will now be brought to the Department for approval.
“This project has been a continued priority for me and I will be in touch with the Minister for Sport to ensure its continued progress.”
However, Helen Farrell of the campaign group Pool4Lucan said she had some reservations about the plans.
She told the Gazette: “I would be really concerned if there wasn’t seating for audience viewing because that would lose a huge amount of revenue because of the inability to host competitions.”
Cllr Liona O’Toole, who tabled the motion requesting the plans at the area committee meeting said that the public would have the opportunity to give their input on the plans when they go to Part 8 planning in the next few weeks.
She added that she has asked for campaigners to meet with the council to voice any concerns they may have.
“I have requested that the meeting with community reps take place during the consultation process,” she said.
The pool is expected to be completed by early 2019 and is estimated to cost €13,000,000.