An Bord Pleanála has given the green light to the Swedish furniture giant IKEA to build a superstore at Ballymun in Dublin.
In its decision, An Bord Pleanála said the new shop would not overload the M50 junction because of 30 conditions it is attaching to the planning permission.
IKEA can begin the construction of the building, however it is not allowed to open for business until the M50 upgrade has been completed, according to conditions set by An Bord Pleanála.
The planning board stipulated that IKEA can not open before 11am. It also ruled out 'browse time' in which shoppers can inspect goods before tills open.
Under the conditions IKEA must ensure that there is a shuttle bus service to Ballymun.
Fingal County Council granted planning permission last October, but it was appealed to An Bord Pleanála by seven parties, including the National Roads Authority (NRA).
The NRA said it had serious concerns as the shop could cause substantial queuing on the M50 and disrupt its upgrade plans.
The concerns over traffic flows were supported by Treasury Holdings, Tesco Ireland, Green Party TD Eamon Ryan and others.
IKEA has stores in 34 countries, however the Government's restrictions on floor space in Ireland prevented the company from locating here.
When these rules were changed, IKEA proposed building a 30,000sq m shop to house its flat-pack furniture in the Ballymun regeneration zone and create 500 jobs.
Meanwhile, the company is moving ahead with its plans for the construction of a 29,000sq m outlet on the outskirts of Belfast.
The superstore is set to open in December and will employ 400 people.