| 1, Madoc Street, Porthmadog | Freehold | 127 m² | £124,000 (2018) |
| 2, Madoc Street, Porthmadog | Freehold | 72 m² | £130,000 (2020) |
| 4, Madoc Street, Porthmadog | Freehold | 103 m² | £35,000 (2000) |
| 5 Madoc Street, Porthmadog | - | 108 m² | - |
| 6, Madoc Street, Porthmadog | Freehold | 98 m² | £92,000 (2012) |
| 7 Madoc Street, Porthmadog | Freehold | 118 m² | £190,000 (2026) |
| 8, Madoc Street, Porthmadog | Freehold | 98 m² | £129,500 (2010) |
| 9, Madoc Street, Porthmadog | Freehold | 100 m² | £78,500 (2013) |
| 9A, Madoc Street, Porthmadog | - | 121 m² | - |
| 15 Madoc Street, Porthmadog | - | 134 m² | - |
| 16 Madoc Street, Porthmadog | Freehold | 123 m² | £165,000 (2008) |
| 16A, Madoc Street, Porthmadog | Freehold | 103 m² | £95,000 (2017) |
| 17, Madoc Street, Porthmadog | Freehold | 102 m² | £175,000 (2022) |
| 18 Madoc Street, Porthmadog | Freehold | 100 m² | £140,000 (2018) |
| 20, Madoc Street, Porthmadog | Freehold | 91 m² | £65,000 (2014) |
| 21 Madoc Street, Porthmadog | Freehold | 125 m² | £122,000 (2021) |
| 22, Madoc Street, Porthmadog | Freehold | 77 m² | £114,000 (2020) |
| 23 Madoc Street, Porthmadog | Freehold | 103 m² | £141,000 (2024) |
| 24 Madoc Street, Porthmadog | Freehold | 107 m² | £170,000 (2023) |
| 28, Madoc Street, Porthmadog | Freehold | 107 m² | £121,000 (2019) |
| 30, Madoc Street, Porthmadog | Freehold | 156 m² | £190,000 (2020) |
| 33 Madoc Street, Porthmadog | Freehold | 126 m² | £145,000 (2007) |
| 34 Madoc Street, Porthmadog | Freehold | 127 m² | £30,000 (1996) |
| 35, Madoc Street, Porthmadog | Freehold | 129 m² | £220,000 (2025) |
| 36, Madoc Street, Porthmadog | Freehold | 101 m² | £145,000 (2019) |
| 38, Madoc Street, Porthmadog | Freehold | 117 m² | £120,000 (2020) |
| 40, Madoc Street, Porthmadog | Freehold | 145 m² | £197,000 (2022) |
| 42, Madoc Street, Porthmadog | Freehold | 85 m² | £135,000 (2009) |
| 45, Madoc Street, Porthmadog | Freehold | 111 m² | £180,000 (2021) |
| 47, Madoc Street, Porthmadog | Freehold | 118 m² | £125,000 (2021) |
| 49, Madoc Street, Porthmadog | - | 117 m² | - |
| 57, Madoc Street, Porthmadog | - | 115 m² | - |
| 59 Madoc Street, Porthmadog | Freehold | 100 m² | £215,000 (2024) |
| 59A, Madoc Street, Porthmadog | Freehold | 81 m² | £135,000 (2019) |
| 63, Madoc Street, Porthmadog | - | 119 m² | - |