| 1, Alwen Drive, Thornhill, Cardiff | Freehold | 71 m² | £230,000 (2019) |
| 2, Alwen Drive, Thornhill, Cardiff | Freehold | 99 m² | £305,000 (2016) |
| 4, Alwen Drive, Thornhill, Cardiff | Freehold | 55 m² | £160,000 (2011) |
| 6 Alwen Drive, Thornhill, Cardiff | Freehold | 55 m² | £130,000 (2015) |
| 9, Alwen Drive, Thornhill, Cardiff | Freehold | 63 m² | £186,000 (2015) |
| 10 Alwen Drive, Thornhill, Cardiff | Freehold | 47 m² | £220,000 (2023) |
| 11, Alwen Drive, Thornhill, Cardiff | Freehold | 94 m² | £243,000 (2015) |
| 13 Alwen Drive, Thornhill, Cardiff | Freehold | 55 m² | £250,000 (2024) |
| 15 Alwen Drive, Thornhill, Cardiff | Freehold | 55 m² | £94,000 (2003) |
| 16, Alwen Drive, Thornhill, Cardiff | Freehold | 99 m² | £309,000 (2021) |
| 17 Alwen Drive, Thornhill, Cardiff | - | 48 m² | - |
| 18, Alwen Drive, Thornhill, Cardiff | Freehold | 55 m² | £193,500 (2021) |
| 19, Alwen Drive, Thornhill, Cardiff | Freehold | 51 m² | £50,000 (1999) |
| 20, Alwen Drive, Thornhill, Cardiff | Freehold | 55 m² | £240,000 (2022) |
| 21 Alwen Drive, Thornhill, Cardiff | Freehold | 63 m² | £315,000 (2026) |
| 22, Alwen Drive, Thornhill, Cardiff | Freehold | 60 m² | £185,000 (2021) |
| 24 Alwen Drive, Thornhill, Cardiff | Freehold | 55 m² | £240,000 (2024) |