| 1 Guston, Illtyd Avenue, Llantwit Major | Freehold | 78 m² | £285,000 (2023) |
| 2 Illtyd Avenue, Llantwit Major | Freehold | 78 m² | £250,000 (2023) |
| 5, Illtyd Avenue, Llantwit Major | - | 94 m² | - |
| 7, Illtyd Avenue, Llantwit Major | - | 84 m² | - |
| 8 Illtyd Avenue, Llantwit Major | - | 96 m² | - |
| 9, Illtyd Avenue, Llantwit Major | Freehold | 114 m² | £173,000 (2010) |
| 10 Illtyd Avenue, Llantwit Major | Freehold | 85 m² | £270,000 (2024) |
| 10A Illtyd Avenue, Llantwit Major | - | 80 m² | - |
| 11 Illtyd Avenue, Llantwit Major | - | 91 m² | - |
| 12 Illtyd Avenue, Llantwit Major | - | 84 m² | - |
| 14, Illtyd Avenue, Llantwit Major | - | 74 m² | - |
| 15, Illtyd Avenue, Llantwit Major | Freehold | 78 m² | £75,000 (2001) |
| 18 Illtyd Avenue, Llantwit Major | - | 85 m² | - |
| 19 Illtyd Avenue, Llantwit Major | Freehold | 75 m² | £225,000 (2025) |
| 20 Illtyd Avenue, Llantwit Major | Freehold | 76 m² | £217,500 (2024) |
| 22 Illtyd Avenue, Llantwit Major | - | 102 m² | - |
| 23 Illtyd Avenue, Llantwit Major | Freehold | 126 m² | £377,500 (2026) |
| 29 Illtyd Avenue, Llantwit Major, Llantwit Major | - | 72 m² | - |
| 33 Illtyd Avenue, Llantwit Major, Llantwit Major | - | 73 m² | - |
| 34, Illtyd Avenue, Llantwit Major | Freehold | 91 m² | £190,000 (2019) |
| 36, Illtyd Avenue, Llantwit Major | Freehold | 86 m² | £175,000 (2018) |
| 37, Illtyd Avenue, Llantwit Major | - | 97 m² | - |
| 38, Illtyd Avenue, Llantwit Major | Freehold | 99 m² | £199,000 (2017) |
| 39, Illtyd Avenue, Llantwit Major | Freehold | 84 m² | £165,000 (2015) |
| 40 Illtyd Avenue, Llantwit Major | - | 95 m² | - |
| 41 Illtyd Avenue, Llantwit Major, Llantwit Major | - | 74 m² | - |
| 43 Illtyd Avenue, Llantwit Major, Llantwit Major | - | 73 m² | - |
| 45, Illtyd Avenue, Llantwit Major | Freehold | 75 m² | £180,000 (2017) |
| 47 Illtyd Avenue, Llantwit Major, Llantwit Major | - | 69 m² | - |
| Cyfanwel, Illtyd Avenue, Llantwit Major | Freehold | 128 m² | £243,000 (2007) |
| Ty Cregan, Illtyd Avenue, Llantwit Major | Freehold | 74 m² | £290,000 (2025) |