Certain |
Possible |
Questionable Doubtful |
Rejected |
|
Confidence is a statement of the site as a medieval fortification or palace |
| Name | Alternative Name(s) | Type | Remains | Block House Point | Artillery Fort | Masonry ruins/remnants | Castle Down | Artillery Fort | Earthworks |
| Cromwells Castle | Artillery Fort | Nothing visible | |
| Ennor Castle | Evor; Inor; Ynnor; Ivor; Old Town; Sullia | Masonry Castle Artillery Fort |
Masonry footings |
| Grimsby Old Blockhouse | Tresco Old Blockhouse | Artillery Fort | Masonry ruins/remnants |
| Harrys Walls | Artillery Fort | Masonry ruins/remnants | |
| King Charles Castle | Artillery Fort | Masonry ruins/remnants | Mount Holles | Sullia | Timber Castle | Nothing visible |
| New Fort | Artillery Fort | Nothing visible | |
| Star Castle and Garrison Walls | The Garrison, The Hugh; Stella Mariae | Artillery Fort | Major | The Folly | Artillery Fort | Masonry ruins/remnants |