| 1, Robert Street, Cathays, Cardiff | Freehold | 66 m² | £275,000 (2026) |
| 2, Robert Street, Cathays, Cardiff | Freehold | 95 m² | £169,000 (2006) |
| 3, Robert Street, Cathays, Cardiff | Freehold | 79 m² | £225,000 (2023) |
| 4, Robert Street, Cathays, Cardiff | Freehold | 99 m² | £117,000 (2002) |
| 5, Robert Street, Cathays, Cardiff | Freehold | 75 m² | £235,000 (2023) |
| 6 Robert Street, Cathays, Cardiff, Cardiff | Freehold | 92 m² | £137,000 (2013) |
| 7 Robert Street, Cathays, Cardiff, Cardiff | Freehold | 86 m² | £182,000 (2016) |
| 8, Robert Street, Cathays, Cardiff | - | 54 m² | - |
| 9 Robert Street, Cathays, Cardiff | - | 84 m² | - |
| 10 Robert Street, Cathays, Cardiff | Freehold | 75 m² | £180,000 (2025) |
| 11, Robert Street, Cathays, Cardiff | Freehold | 100 m² | £335,000 (2024) |
| 12 Robert Street, Cathays, Cardiff | - | 78 m² | - |
| 13, Robert Street, Cathays, Cardiff | Freehold | 90 m² | £155,000 (2007) |
| 15, Robert Street, Cathays, Cardiff | Freehold | 80 m² | £200,000 (2022) |
| 16 Robert Street, Cathays, Cardiff, Cardiff | Freehold | 93 m² | £250,000 (2022) |
| 17, Robert Street, Cathays, Cardiff | Freehold | 85 m² | £145,000 (2014) |
| 19 Robert Street, Cathays, Cardiff | Freehold | 96 m² | £252,000 (2022) |
| 23, Robert Street, Cathays, Cardiff | Freehold | 87 m² | £228,000 (2020) |
| 25 Robert Street, Cathays, Cardiff | Freehold | 81 m² | £180,000 (2023) |
| 27 Robert Street, Cathays, Cardiff | Freehold | 103 m² | £183,000 (2007) |
| First Floor Flat, 8 Robert Street, Cathays, Cardiff | - | 52 m² | - |
| Ground Floor Flat, 8 Robert Street, Cathays, Cardiff | - | 47 m² | - |