I made local historical enquiries and having been directed towards The Kennels adj Brodick Castle, also wrote to the Arran Estate. I found reference to gamekeepers cottage relating to Castle Lodge which adjoins the buildings formerly known as the kennels:
http://www.stay-arran.co.uk/accommodation/cottage.php?ID=1 It looks as though Castle Lodge at Brodick Castle was the head gamekeepers cottage. I have been told by the Arran Estate that:
"... for many years the house was known as The Kennels, though, and that was since it was presumably extended in the late 1880’s. I think it was always the base for the head keeper. The Estate had about 19 gamekeepers/ stalkers in it s heyday and some underkeepers had their own houses, perhaps in Glenrosa of Corrie/ High Corrie and there were Estate outposts at Lochranza, another at The Heights, one at Kilpatrick another at Dippen, etc. "
As there is an old listed cottage known as "Goatfell Cottage" at High Corrie (only 2 miles north of Brodick) it seems much more likely to be the one I have been looking for.
