| 1 Walwyn Place, St. Mellons, Cardiff | Freehold | 67 m² | £150,000 (2010) |
| 3 Walwyn Place, St. Mellons, Cardiff | Freehold | 82 m² | £295,000 (2024) |
| 4, Walwyn Place, St. Mellons, Cardiff | - | 55 m² | - |
| 5, Walwyn Place, St. Mellons, Cardiff | Freehold | 93 m² | £185,000 (2011) |
| 6, Walwyn Place, St. Mellons, Cardiff | Freehold | 55 m² | £121,000 (2006) |
| 7, Walwyn Place, St. Mellons, Cardiff | Freehold | 121 m² | £249,995 (2015) |
| 8, Walwyn Place, St. Mellons, Cardiff | Freehold | 89 m² | £105,000 (2002) |
| 9, Walwyn Place, St. Mellons, Cardiff | Freehold | 125 m² | £325,000 (2023) |
| 10, Walwyn Place, St. Mellons, Cardiff | Freehold | 70 m² | £188,000 (2017) |
| 11 Walwyn Place, St. Mellons, Cardiff | - | 100 m² | - |
| 13, Walwyn Place, St. Mellons, Cardiff | Freehold | 132 m² | £246,000 (2015) |
| 14, Walwyn Place, St. Mellons, Cardiff | Freehold | 76 m² | £190,000 (2017) |
| 15 Walwyn Place, St. Mellons, Cardiff | Freehold | 103 m² | £84,995 (2000) |
| 17, Walwyn Place, St. Mellons, Cardiff | Freehold | 134 m² | £243,000 (2016) |
| 18, Walwyn Place, St. Mellons, Cardiff | Freehold | 55 m² | £149,000 (2017) |
| 19, Walwyn Place, St. Mellons, Cardiff | Freehold | 81 m² | £79,995 (2000) |
| 20, Walwyn Place, St. Mellons, Cardiff | Freehold | 95 m² | £250,000 (2021) |
| 21, Walwyn Place, St. Mellons, Cardiff | Freehold | 80 m² | £149,995 (2004) |
| 22 Walwyn Place, St. Mellons, Cardiff | Freehold | 91 m² | £285,000 (2024) |
| 23, Walwyn Place, St. Mellons, Cardiff | Freehold | 72 m² | £120,000 (2003) |
| 24, Walwyn Place, St. Mellons, Cardiff | Freehold | 55 m² | £190,000 (2022) |
| 25, Walwyn Place, St. Mellons, Cardiff | Freehold | 68 m² | £79,500 (2001) |
| 26 Walwyn Place, St. Mellons, Cardiff | Freehold | 53 m² | £117,500 (2005) |
| 27 Walwyn Place, St. Mellons, Cardiff | Freehold | 54 m² | £180,000 (2023) |
| 29 Walwyn Place, St. Mellons, Cardiff | Freehold | 68 m² | £265,000 (2025) |
| 31, Walwyn Place, St. Mellons, Cardiff | Freehold | 66 m² | £165,000 (2014) |
| 32 Walwyn Place, St. Mellons, Cardiff | Freehold | 55 m² | £120,000 (2006) |
| 33 Walwyn Place, St. Mellons, Cardiff | Freehold | 55 m² | £94,000 (2003) |
| 37, Walwyn Place, St. Mellons, Cardiff | Freehold | 55 m² | £151,000 (2019) |
| 39, Walwyn Place, St. Mellons, Cardiff | Freehold | 52 m² | £134,000 (2015) |
| Chestnut Cottage, Walwyn Place, St. Mellons, Cardiff | Freehold | 55 m² | £205,000 (2023) |