The wall is aimed at preventing the harsh winter storms from eroding the golf course, a plight that the surrounding beach has already gone through in the recent years.
Trump International Golf Links Doonbeg in Ireland, owned by United States President Donald Trump, has been given permission to build a 38,000-tonne sea wall at its course despite environmental groups warning it could damage protected wildlife habitats.
The work will consist of two new structures and a 1km wall. Those opposing the wall can still appeal the county's decision.
Despite opposition, the County Clare Council disagrees, but environmental groups plan to appeal the decision to build the seawalls.
President Trump a year ago pulled plans for more extensive coastal protection works at Doonbeg amid fierce oppositions to a 200,000 tonne, 2.8km (two mile) sea defence. A sand dune system has to be allowed to move - the sand has to go in and go out.
The general manager of the resort, Joe Russell, said Trump Doonbeg was pleased with the decision and had ambitious plans to expand its facilities.
Trump International Golf Links bought the resort at Doonbeg, County Clare in 2014 at auction for 8.7 million euros.
Irish officials have approved plans for a seawall meant to protect a Trump Organization golf course in Ireland from climate change.
As part of the planning conditions, Mr Trump's resort management will have to keep a close eye on the impact on beach users, the Carrowmore dune system itself, and plants and animals.
In addition to building the wall, it is estimated that Trump will pay more than $3,00,000 to the council to cover the cost of adding or repairing roads and footpaths in the area and other public infrastructure. The earlier application had referenced climate change and global warming as reasons for sea level rise and the need for the wall; the new application omitted any such references.
Last year, controversial plans for a 4.5m-high rock wall, running 2.8km along the beach, were abandoned in favour of a revised proposal.