If it has been there for 25 years, isn’t going to like being moved even if you could get down to the roots which will be deep.
I don't know, Graphite, I think that roses can be pretty robust about being moved, however long they've been established.
Many years ago I had to take down a rose with a bit of a local history connection that I wanted to keep, but was in the way of a new porch. I took loads of cuttings and dug out the root and replanted it to see what would happen. Most of the cuttings rooted and the root regrew... (leaving me with a lot of rooted cuttings to rehome)
Of course, it's too early to take cuttings now, but, if it is legally possible to remove it, I think that there would be a good chance of the original plant regrowing.