| 1 Isgraig, Tremadog, Porthmadog | - | 73 m² | - |
| 2 Isgraig, Tremadog, Porthmadog | Freehold | 72 m² | £120,000 (2023) |
| 5, Isgraig, Tremadog, Porthmadog | Freehold | 75 m² | £82,500 (2012) |
| 8, Isgraig, Tremadog, Porthmadog | - | 45 m² | - |
| 10 Isgraig, Tremadog, Porthmadog | Freehold | 83 m² | £135,000 (2025) |
| 11, Isgraig, Tremadog, Porthmadog | - | 84 m² | - |
| 13, Isgraig, Tremadog, Porthmadog | - | 85 m² | - |
| 19 Isgraig, Tremadog, Porthmadog | Freehold | 91 m² | £130,000 (2026) |
| 20, Isgraig, Tremadog, Porthmadog | - | 82 m² | - |
| 25, Isgraig, Tremadog, Porthmadog | - | 81 m² | - |
| 27, Isgraig, Tremadog, Porthmadog | - | 54 m² | - |
| 36, Isgraig, Tremadog, Porthmadog | - | 83 m² | - |
| 41 Isgraig, Tremadog, Porthmadog | - | 82 m² | - |
| 43, Isgraig, Tremadog, Porthmadog | Freehold | 78 m² | £40,500 (1995) |
| 44, Isgraig, Tremadog, Porthmadog | - | 85 m² | - |
| 45 Isgraig, Tremadog, Porthmadog | - | 84 m² | - |
| 49, Isgraig, Tremadog, Porthmadog | - | 84 m² | - |
| 50, Isgraig, Tremadog, Porthmadog | - | 84 m² | - |
| 51 Isgraig, Tremadog, Porthmadog | - | 83 m² | - |
| 52, Isgraig, Tremadog, Porthmadog | - | 65 m² | - |
| 53, Isgraig, Tremadog, Porthmadog | Freehold | 69 m² | £77,500 (2018) |
| 54 Isgraig, Tremadog, Porthmadog | - | 72 m² | - |
| 55 Isgraig, Tremadog, Porthmadog | - | 85 m² | - |
| 57, Isgraig, Tremadog, Porthmadog | - | 77 m² | - |
| 58, Isgraig, Tremadog, Porthmadog | Freehold | 81 m² | £21,840 (2002) |
