Missing footways, no action needed.
Will map these later. Mapillary already available.

Ref osm.org/note/3816556

Missing overhang extension from main building

Missing overhang extension from square tower

Missing possible corridor, survey needed.
Check if indoor steps have corridor part halfway down
(as connector between two steps segments.)

suggested tags;
level=0.5
note=non-existent level number for footway part of steps located between level 0 and 1.

(preferably do not add "non_existent_levels=0.5" to building itself here, this may be confusing.)

Missing possible POI nearby, local knowledge / survey needed.

At least two sources mention an "Irish River Life" map board
- https://outdoorkilkenny.ie/wp-content/uploads/2024/01/20230428_091129-1.jpg.webp
( https://outdoorkilkenny.ie/activities/biodiversity-in-kilkenny/ )
- https://tidytowns.s3.eu-west-1.amazonaws.com/u_reports/2022/kilkenny/2022-Kilkenny-Kilkenny-398.pdf

It could be this one, but it is missing a clear image.
osm.org/node/12160141802

Missing possible POI, survey needed.
Stone with inscription and two symbols.

https://www.mapillary.com/app/?pKey=353150813845387&focus=photo

Missing possible POI, survey needed.
Mural of a plant or similar

https://www.mapillary.com/app/?pKey=1114600709766272&focus=photo

osm.org/way/700646609/history
Building "Noremount" seems vacant, abandoned, or similar.
Grey, meters heigh wall with notice and sign.

https://www.mapillary.com/app/?pKey=4500192360206313&focus=photo

Missing plaque

Source (use for reference only!);
https://www.facebook.com/photo/?fbid=10156497654653948

osm.org/node/5816329890/history
Missing brand and/or ref, survey needed.
Any other details may be useful.

https://www.mapillary.com/app/?pKey=1017146139292496&focus=photo