I think the actual 'rathouse' was the one the old foyboatmen used to work out of. I can barely remember it being there probably 40 years ago. And the place was wick with rats back then hence the name.Witnessed with my own eyes ,the pier that got damaged in the storms has always been known as that rathouse, it's 500 yards away .May have improved ,I rarely go down fishing anymore but it was a big issue