I don't know if it will ever be finished, but I can see the upper part of the cottage becoming a self contained apartment, with the larger room being the living area, and the smaller room a bedroom. You may notice there's a blocked up fireplace on the dividing wall between the two rooms.
There appears never to have been a staircase leading from the ground floor rooms, which makes me suspect that originally the ground floor was used for housing livestock which, in the winter months, would have helped heat the living quarters above. This, I have read, was a common practice in rural Ireland in days gone by.
There is no doorway between the two downstairs rooms, and nor does it appear that there ever was. The only thing that confuses me about this is that there is actually a fireplace in the smaller room. It's really quite a small room, with originally just one small window, so why it (and not the larger downstairs room) needed a fireplace is not immediately clear.
I actually know one of the daughters (through a camera club) of the old woman who last owned this place. That daughter is around my age, and was actually reared in the main residence. So, once the social distancing restrictions are over and the camera club can meet again, I may ask her if she knows anything about the history of the old cottage.