danieldegroot2
Until 2019, Mapillary ( https://www.mapillary.com/app/?pKey=280681210437692&focus=photo ) suggested;
name:en=High Hayes Terrace
name:ga=Ardán an Gharrai Uachtaraigh

for any of
https://www.openstreetmap.org/way/269097658
https://www.openstreetmap.org/way/940776773
https://www.openstreetmap.org/way/24616605
https://www.openstreetmap.org/way/179803489

not "Highhays Terrace" like the area name "Highhays".

Was the street name recently changed? If so, has the signed name also been changed?

The gaellic name has not been mapped yet. "Gharrai" likely has a special "í" character, but this is unclear on Mapillary.