What is the source for the name "Pont Twym" and not "Pond Twym"? Growing up in the area I always heard it called Pond Twym, although a google search shows references to both spellings.
Also, the correct OSM key would be not:name, not not_name

osm.org/node/6510091490 doesn't seem to merit the place=neighbourhood tag. Would an area with landuse=residential + name="Knight's Bridge Apartments" + residential=apartments be more suitable? I'm new at this.