| 1 Portland Street, Abertillery | Freehold | 81 m² | £95,000 (2025) |
| 2, Portland Street, Abertillery | Freehold | 75 m² | £12,685 (2002) |
| 3 Portland Street, Abertillery | Leasehold | 94 m² | £95,000 (2021) |
| 4 Portland Street, Abertillery | Freehold | 84 m² | £40,000 (2011) |
| 5 Portland Street, Abertillery | Leasehold | 84 m² | £117,000 (2022) |
| 6, Portland Street, Abertillery | - | 85 m² | - |
| 7, Portland Street, Abertillery | Freehold | 105 m² | £22,500 (2001) |
| 8 Portland Street, Abertillery | Freehold | 87 m² | £100,000 (2022) |
| 10, Portland Street, Abertillery | Freehold | 85 m² | £60,000 (2016) |
| 12, Portland Street, Abertillery | - | 112 m² | - |
| 14, Portland Street, Abertillery | Freehold | 93 m² | £35,000 (2002) |
| 15 Portland Street, Abertillery | - | 95 m² | - |
| 17, Portland Street, Abertillery | Freehold | 84 m² | £125,000 (2026) |
| 19, Portland Street, Abertillery | - | 90 m² | - |
| 21 Portland Street, Abertillery | Leasehold | 90 m² | £30,000 (2011) |
| 23, Portland Street, Abertillery | Freehold | 91 m² | £64,000 (2005) |
| 27, Portland Street, Abertillery | Freehold | 104 m² | £94,000 (2022) |
| 29 Portland Street, Abertillery | Freehold | 80 m² | £73,000 (2022) |
| 31 Portland Street, Abertillery | Freehold | 81 m² | £74,000 (2022) |
| 33, Portland Street, Abertillery | - | 77 m² | - |
| 37, Portland Street, Abertillery | Leasehold | 76 m² | £16,000 (1996) |
| 42, Portland Street, Abertillery | Freehold | 96 m² | £35,000 (2016) |
| 43, Portland Street, Abertillery | - | 91 m² | - |
| 44, Portland Street, Abertillery | Leasehold | 75 m² | £61,000 (2006) |
| 45 Portland Street, Abertillery, Abertillery | Leasehold | 82 m² | £64,000 (2024) |
| 46, Portland Street, Abertillery | Freehold | 70 m² | £31,500 (2014) |
| 47, Portland Street, Abertillery | - | 77 m² | - |
| 48 Portland Street, Abertillery | Freehold | 78 m² | £107,000 (2022) |
| 49 Portland Street, Abertillery, Abertillery | Freehold | 70 m² | £105,000 (2025) |
| 50, Portland Street, Abertillery | - | 62 m² | - |
| 51 Portland Street, Abertillery | Leasehold | 80 m² | £89,950 (2007) |
| 52 Portland Street, Abertillery | Freehold | 81 m² | £70,000 (2021) |
| 53 Portland Street, Abertillery, Abertillery | Freehold | 75 m² | £47,000 (2021) |
| 54, Portland Street, Abertillery | Freehold | 65 m² | £36,000 (2017) |
| 58 Portland Street, Abertillery, Blaenau Gwent | - | 54 m² | - |
| 60 Portland Street, Abertillery | - | 62 m² | - |
| 62, Portland Street, Abertillery | - | 63 m² | - |
| 64, Portland Street, Abertillery | Freehold | 52 m² | £100,000 (2025) |