| 1 | Bastions and Walls of Star CastleTR21 0JA | Grade I |
| 2 | Outer Walls and GatewayTR21 0PP | Grade I |
| 3 | Powder Magazine and Blast WallsTR21 0PP | Grade I |
| 4 | Star Castle HotelTR21 0JA | Grade I |
| 5 | Cromwells CastleTR24 0QL | Grade II* |
| 6 | Gatehouse CottageTR21 0PP | Grade II* |
| 7 | King Charles' CastleTR24 0QB | Grade II* |
| 8 | Newman HouseTR21 0JA | Grade II* |
| 9 | St Agnes LighthouseTR22 0PL | Grade II* |
| 10 | The Day MarkTR25 0QL | Grade II* |
| 11 | The Guard HouseTR21 0PP | Grade II* |
| 12 | The Old Church of St MaryTR21 0PA | Grade II* |
| 13 | 1-10, Higher StrandTR21 0PU | Grade II |
| 14 | 1 and 2, Trinity CottagesTR21 0LS | Grade II |
| 15 | 1, Well LaneTR21 0JD | Grade II |
| 16 | 3, Garrison HillTR21 0JH | Grade II |
| 17 | Ashvale FarmhouseTR25 0QW | Grade II |
| 18 | Atlantic CottageTR22 0PL | Grade II |
| 19 | Avenue HouseTR22 0PL | Grade II |
| 20 | Bank House Pentlands Flats Scillonia Shop Occupied by Michael GrayTR21 0HY | Grade II |
| 21 | Barn at Little Arthur FarmTR25 0QL | Grade II |
| 22 | Barn at Trenoweth FarmTR21 0NS | Grade II |
| 23 | Barn to the West of Tamarisk FarmhouseTR22 0PL | Grade II |
| 24 | Bellrock Hotel and Attached Wall and RailingsTR21 0JT | Grade II |
| 25 | Bleak HouseTR25 0QL | Grade II |
| 26 | BordeauxTR21 0LN | Grade II |
| 27 | Borough FarmhouseTR21 0NU | Grade II |
| 28 | Borough Farm OutbuildingsTR24 0PX | Grade II |
| 29 | Brewhouse Approximately 2 Metres South West of Veronica FarmhouseTR23 0PR | Grade II |
| 30 | Building to South East of the LighthouseTR22 0PL | Grade II |
| 31 | Buzza TowerTR21 0NQ | Grade II |
| 32 | Church of All SaintsTR23 0PR | Grade II |
| 33 | Church of St AgnesTR22 0PL | Grade II |
| 34 | Church of St Martin'sTR25 0QL | Grade II |
| 35 | Church of St Mary (Methodist)TR21 0PU | Grade II |
| 36 | Church of St Mary'sTR21 0NB | Grade II |
| 37 | Church of St NicholasTR24 0QD | Grade II |
| 38 | Coastguard's Look Out TowerTR21 0NR | Grade II |
| 39 | Corner Cottage Evergreen MelindaTR25 0QL | Grade II |
| 40 | Crebinnick, House Adjoining to East, Hazeldene, Thurleigh and RaveenTR21 0JL | Grade II |
| 41 | Cresset From St Agnes Lighthouse in Tresco Abbey GardensTR24 0QH | Grade II |
| 42 | Crows Nest the Cabin the ForecastleTR21 0PL | Grade II |
| 43 | Custom House Strand HouseTR21 0PS | Grade II |
| 44 | Dolphin CottageTR24 0QD | Grade II |
| 45 | Dolphin Cottage, Bank Cottage, and Step CottageTR21 0HY | Grade II |
| 46 | Dolphin House and Attached Outbuildings and WallTR24 0QD | Grade II |
| 47 | Evergreen Cottage Pelistry CottageTR21 0LN | Grade II |
| 48 | Farmbuilding Approximately 20 Metres North North East of Annet FarmhouseTR22 0PL | Grade II |
| 49 | Former Fish Salting Trough on East Side of Old Town BayTR21 0NH | Grade II |
| 50 | Former Wesleyan Methodist ChapelTR21 0JD | Grade II |