| 1 Login Terrace, Trecastle, Brecon | Freehold | 61 m² | £159,000 (2022) |
| 1 Pen Y Bont Cottage, Trecastle, Brecon | Freehold | 94 m² | £225,000 (2024) |
| 1 The Willows, Trecastle, Brecon | Freehold | 77 m² | £85,000 (2025) |
| 2 Login Terrace, Trecastle, Brecon | Freehold | 96 m² | £138,000 (2004) |
| 2 Pen Y Bont Cottage, Trecastle, Brecon | Freehold | 53 m² | £122,500 (2017) |
| 2 The Willows, Trecastle, Brecon | Freehold | 67 m² | £130,000 (2020) |
| 4 Login Terrace, Trecastle, Brecon | Freehold | 95 m² | £62,000 (2009) |
| Berwyn, Trecastle, Brecon | - | 99 m² | - |
| Brook House, Trecastle, Brecon | Freehold | 166 m² | £315,000 (2023) |
| Bush Forge, Trecastle, Brecon | Freehold | 150 m² | £68,500 (1995) |
| Bush House, Trecastle, Brecon | Freehold | 112 m² | £155,000 (2015) |
| Carpenters Cottage, Trecastle, Brecon | - | 97 m² | - |
| Castle Courtyard, Trecastle, Brecon | - | 169 m² | - |
| Drain Duon, Trecastle, Brecon | Freehold | 151 m² | £180,000 (2017) |
| Ffynnon Lloer, Trecastle, Brecon | Freehold | 99 m² | £300,000 (2017) |
| Ger Y Nant, Trecastle, Brecon | Freehold | 104 m² | £195,000 (2016) |
| Golwg Y Bannau, Trecastle, Brecon | Freehold | 78 m² | £230,000 (2026) |
| Hafon Dawel, Trecastle, Brecon | Freehold | 94 m² | £195,000 (2017) |
| Heddfan, Trecastle, Brecon | - | 129 m² | - |
| Llwyn Celyn, Trecastle, Brecon | - | 98 m² | - |
| Meadow View, Bishops Town, Trecastle, Brecon | Freehold | 57 m² | £150,000 (2018) |
| Old Chapel, Trecastle, Brecon | Leasehold | 145 m² | £150,000 (2021) |
| Penrhiw Farm, Trecastle, Brecon | - | 105 m² | - |
| Pleasant View, Trecastle, Brecon | Freehold | 107 m² | £200,000 (2012) |
| Sunrise Cottage, Trecastle, Brecon | - | 96 m² | - |
| Twyn Y Felin, Trecastle, Brecon | Freehold | 226 m² | £420,000 (2015) |
| White House, Trecastle, Brecon | Freehold | 125 m² | £166,000 (2016) |
