The pub, which will accommodate up to 60 customers, will not operate in store, but will be in separate premises next door.
Lidl’s managing director for Northern Ireland Gordon Cruikshanks said: “After six years in the planning process, we’re delighted to today confirm the development of a brand new public house and associated off-sales located adjacent to our Dundonald store.”
It is expected to open this summer and the company said it will serve “selected lines” from Lidl’s beer, wine and spirit range, with a focus on promoting local suppliers.
In Northern Ireland, supermarkets must overcome two hurdles before they can start to sell alcohol.
They first must buy a licence which has been “surrendered” by another business, such as a pub which is closing down.
This “surrender principle” acts as a strict cap on the number of premises which can sell alcohol.
Secondly, the supermarket must pass the “inadequacy” test in which it has to show the number of existing licensed premises in an area is inadequate to meet the needs of the public.
Lidl was not able to pass the inadequacy test for a standard off-licence.
It was able to pass the test for a pub as two bars close to the supermarket have closed in recent years.
These unique circumstance means Lidl is unlikely to be adding pubs to its 13,000 shops across the world.
Last year Northern Ireland’s communities minister rejected the findings of an expert report which said a reform of the surrender principle could increase competition and innovation.