| 1, Clos Onnen, Margam, Port Talbot | Freehold | 112 m² | £247,500 (2018) |
| 3 Clos Onnen, Coed Hirwaun, Coed Hirwaun | Freehold | 118 m² | £315,000 (2023) |
| 4, Clos Onnen, Margam, Port Talbot | Freehold | 112 m² | £97,000 (2000) |
| 8, Clos Onnen, Margam, Port Talbot | Freehold | 116 m² | £207,500 (2016) |
| 9, Clos Onnen, Margam, Port Talbot | Freehold | 98 m² | £260,000 (2021) |
| 10 Clos Onnen, Margam, Port Talbot | Freehold | 134 m² | £236,250 (2019) |
| 11, Clos Onnen, Margam, Port Talbot | Freehold | 176 m² | £302,000 (2017) |
| 12, Clos Onnen, Margam, Port Talbot | Freehold | 185 m² | £134,500 (2002) |
| 14 Clos Onnen, Coed Hirwaun, Coed Hirwaun | Freehold | 69 m² | £60,000 (2000) |
| 16 Clos Onnen, Margam, Port Talbot | Freehold | 68 m² | £205,000 (2024) |
| 18, Clos Onnen, Margam, Port Talbot | Freehold | 70 m² | £130,000 (2013) |
| 19, Clos Onnen, Margam, Port Talbot | Freehold | 70 m² | £175,000 (2023) |
| 20 Clos Onnen, Margam, Port Talbot | Freehold | 56 m² | £165,000 (2023) |
| 22 Clos Onnen, Margam, Port Talbot | Freehold | 57 m² | £99,000 (2006) |
| 23, Clos Onnen, Margam, Port Talbot | Freehold | 68 m² | £145,000 (2019) |
| 24 Clos Onnen, Margam, Port Talbot | Freehold | 57 m² | £110,000 (2013) |
| 25 Clos Onnen, Margam, Port Talbot | Freehold | 58 m² | £104,995 (2005) |
| 26 Clos Onnen, Margam, Port Talbot | Freehold | 77 m² | £87,000 (2003) |
| 27, Clos Onnen, Margam, Port Talbot | Freehold | 57 m² | £178,500 (2022) |
| 28, Clos Onnen, Margam, Port Talbot | Freehold | 68 m² | £121,000 (2010) |
| 31, Clos Onnen, Margam, Port Talbot | Freehold | 69 m² | £140,000 (2019) |