Gelli Garn Castle
Has been described as a Rejected Timber Castle (Other/Unknown), and also as a Rejected Masonry Castle
There are uncertain remains
| Name | Gelli Garn Castle |
| Alternative Names | Coed Breigam |
| Historic Country | Glamorgan |
| Modern Authority | Vale of Glamorgan |
| 1974 Authority | South Glamorgan |
| Community | Penllyn |
The site indicated is on crest of very steep slope and has extensive view in all directions. Several large pits and mounds, which show strong stone content. (Glamorgan-Gwent Archaeological Trust HER record of medieval castle)
Not scheduled
Not Listed
County Historic Environment Record
| OS Map Grid Reference | SS982796 |
| Latitude | 51.5063514709473 |
| Longitude | -3.46760988235474 |
| Eastings | 298200 |
| Northings | 179620 |