| 1 | Church of St NonnaPL15 7SJ | Grade I |
| 2 | Altarnun Methodist ChapelPL15 7RH | Grade II |
| 3 | Altarnun Old BridgePL15 7SJ | Grade II |
| 4 | Altarnun Post Office and Corner CottagePL15 7SJ | Grade II |
| 5 | Altarnun War MemorialPL15 7SJ | Grade II |
| 6 | Blocked Arch 20 Metres to South West of Oak HousePL15 7RB | Grade II |
| 7 | Carriage House and Stables 15 Metres to North West of Oak HousePL15 7RB | Grade II |
| 8 | Church HallPL15 7SJ | Grade II |
| 9 | ChygrysysPL15 7SJ | Grade II |
| 10 | Chy MeynPL15 7RH | Grade II |
| 11 | CissysPL15 7RH | Grade II |
| 12 | Cross in Garden to South of Oak HousePL15 7RB | Grade II |
| 13 | Dyji Klys and Rosebridge CottagePL15 7SJ | Grade II |
| 14 | FigsburyPL15 7RH | Grade II |
| 15 | Gate and Gate-Piers at East Entrance to Penpont HousePL15 7SJ | Grade II |
| 16 | Gate and Gate-Piers, Wall to Right and Mounting Block at South East Entrance to Churchyard of Church of St NonnaPL15 7SJ | Grade II |
| 17 | Gate, Gate-Piers and Flanking Walls at North Entrance to Altarnun Wesleyan ChapelPL15 7RH | Grade II |
| 18 | HomeleighPL15 7SJ | Grade II |
| 19 | House 10 Metres to South West of Rosebridge CottagePL15 7SJ | Grade II |
| 20 | House Adjoining on North of Mary AnnsPL15 7RH | Grade II |
| 21 | House Adjoining on South of Penpont MillPL15 7SJ | Grade II |
| 22 | House Directly to Front of Merlin's CottagePL15 7SJ | Grade II |
| 23 | Isbell Tomb in Churchyard of Church of St NonnaPL15 7SJ | Grade II |
| 24 | K6 Telephone Kiosk to South West of Post OfficePL15 7SJ | Grade II |
| 25 | Maid Marian Foodstores and Adjoining House on LeftPL15 7SJ | Grade II |
| 26 | Mary AnnsPL15 7RH | Grade II |
| 27 | North East Entrance to Churchyard of Church of St NommaPL15 7RB | Grade II |
| 28 | North West Entrance to Churchyard of Church of St NonnaPL15 7RB | Grade II |
| 29 | Oak HousePL15 7RB | Grade II |
| 30 | Outbuildings in Group 15 Metres to West of Oak HousePL15 7RB | Grade II |
| 31 | Pair of Cottages 10 Metres to East of Mary Anns and CissysPL15 7RH | Grade II |
| 32 | Pair of Gate-Piers at North Entrance to Oak HousePL15 7RB | Grade II |
| 33 | Penpont HousePL15 7SJ | Grade II |
| 34 | Penpont MillPL15 7SJ | Grade II |
| 35 | Phylroy and House Adjoining on RightPL15 7RH | Grade II |
| 36 | Pinnacle in Garden 40 Metres to East of Penpont HousePL15 7SJ | Grade II |
| 37 | Riverside and Houses Adjoining to Right and LeftPL15 7SJ | Grade II |
| 38 | Row of 4 Cottages Including No.2 and Penpont Lodge 50 Metres to South East of Altarnum BridgePL15 7SJ | Grade II |
| 39 | Tombchest of J Lawers and Headstone of J Stephens, 7 Metres to North of North Aisle of Church of St NonnaPL15 7RB | Grade II |