| 1 | Portland CastleDT5 1AZ | Grade I |
| 2 | Captain's HouseDT5 1AZ | Grade II* |
| 3 | Gateway and Curtain Wall to South East of Captain's HouseDT5 1AZ | Grade II* |
| 4 | Queen Anne House with Boundary Wall and Gate PiersDT5 1LL | Grade II* |
| 5 | 107 and 109, High StreetDT5 1JH | Grade II |
| 6 | 10 and Attached OutbuildingDT5 1JR | Grade II |
| 7 | 120, ChiswellDT5 1BG | Grade II |
| 8 | 135 with Front Boundary WallDT5 1JH | Grade II |
| 9 | 137 and 139 with Front Boundary WallDT5 1JH | Grade II |
| 10 | 139 with Boundary WallDT5 1AP | Grade II |
| 11 | 141 with Boundary Walls, Piers and GateDT5 1LH | Grade II |
| 12 | 147, High StreetDT5 1LH | Grade II |
| 13 | 159 and 161, High StreetDT5 1LH | Grade II |
| 14 | 165, FortuneswellDT5 1AF | Grade II |
| 15 | 165, High StreetDT5 1BG | Grade II |
| 16 | 17, MallamsDT5 1NJ | Grade II |
| 17 | 185, Brandy LaneDT5 1AP | Grade II |
| 18 | 193, Brandy LaneDT5 1AP | Grade II |
| 19 | 195 and 197, Brandy LaneDT5 1AP | Grade II |
| 20 | 199, Brandy LaneDT5 1BG | Grade II |
| 21 | 19, MallamsDT5 1NJ | Grade II |
| 22 | 1 and 2 with Boundary Wall and StepsDT5 1EH | Grade II |
| 23 | 1 CastletownDT5 1BD | Grade II |
| 24 | 3, with Boundary WallDT5 1EH | Grade II |
| 25 | 42, MallamsDT5 1NJ | Grade II |
| 26 | 53, MallamsDT5 1NJ | Grade II |
| 27 | 58, High StreetDT5 1JG | Grade II |
| 28 | 58, MallamsDT5 1AB | Grade II |
| 29 | 59 and 61, FortuneswellDT5 1LZ | Grade II |
| 30 | 60 and Attached OutbuildingDT5 1LH | Grade II |
| 31 | 60, MallamsDT5 1AB | Grade II |
| 32 | 62 and 64, MallamsDT5 1AB | Grade II |
| 33 | 6 and 8, FortuneswellDT5 1LL | Grade II |
| 34 | 81, FortuneswellDT5 1NP | Grade II |
| 35 | 86, ChiswellDT5 1AR | Grade II |
| 36 | 90 and 92, ChiswellDT5 1BG | Grade II |
| 37 | Boundary Stone at Ngr Sy 68737327DT5 1JU | Grade II |
| 38 | Boundary Stone Circa 23 Metres South of Entrance to Captain's HouseDT5 1AZ | Grade II |
| 39 | Boundary Stones at Ngr Sy 68917322DT5 1NE | Grade II |
| 40 | Bow Cottage, with Boundary WallDT5 1NQ | Grade II |
| 41 | Church of St JohnDT5 1LR | Grade II |
| 42 | Churchyard Walls and Piers to Church of St JohnDT5 1LR | Grade II |
| 43 | Conjuror's LodgeDT5 1AW | Grade II |
| 44 | Cottage Adjoining East Side of No 189DT5 1AP | Grade II |
| 45 | Dolphin Dolphin and Neptune with Attached Rear Boundary Wall NeptuneDT5 1AP | Grade II |
| 46 | Fair WindsDT5 1AB | Grade II |
| 47 | Fisherman's CottageDT5 1AP | Grade II |
| 48 | Former Portland Steam LaundryDT5 1LB | Grade II |
| 49 | Front Boundary Wall and Steps to Police StationDT5 1AU | Grade II |
| 50 | K6 Telephone Kiosk Opposite No 63DT5 1BG | Grade II |