| 1, Briar Close, Undy, Caldicot | - | 64 m² | - |
| 3 Briar Close, Undy, Caldicot | Freehold | 71 m² | £155,000 (2015) |
| 4, Briar Close, Undy, Caldicot | - | 92 m² | - |
| 6, Briar Close, Undy, Caldicot | Freehold | 101 m² | £310,000 (2019) |
| 7, Briar Close, Undy, Caldicot | Freehold | 65 m² | £155,000 (2014) |
| 9 Briar Close, Undy, Caldicot | Freehold | 84 m² | £213,000 (2007) |
| 11 Briar Close, Undy, Caldicot | Freehold | 47 m² | £205,000 (2024) |
| 12 Briar Close, Undy, Caldicot | Freehold | 62 m² | £64,000 (1997) |
| 13, Briar Close, Undy, Caldicot | Freehold | 48 m² | £49,500 (1997) |
| 15, Briar Close, Undy, Caldicot | Freehold | 54 m² | £132,000 (2006) |
| 16 Briar Close, Undy, Caldicot | Freehold | 63 m² | £272,500 (2025) |
| 17, Briar Close, Undy, Caldicot | Freehold | 56 m² | £199,000 (2020) |
| 18 Briar Close, Undy, Caldicot | Freehold | 42 m² | £275,000 (2022) |
| 19, Briar Close, Undy, Caldicot | Freehold | 75 m² | £180,000 (2010) |
| 20 Briar Close, Undy, Caldicot | Freehold | 41 m² | £205,000 (2023) |
| 22, Briar Close, Undy, Caldicot | Freehold | 49 m² | £188,000 (2019) |
| 25 Briar Close, Undy, Caldicot | - | 48 m² | - |
| 27 Briar Close, Undy, Caldicot | Freehold | 47 m² | £130,000 (2015) |
| 29, Briar Close, Undy, Caldicot | Freehold | 81 m² | £179,000 (2016) |
| 31, Briar Close, Undy, Caldicot | Freehold | 48 m² | £188,000 (2018) |