| 8, Welbeck Avenue, Darlington | Freehold | 81 m² | £128,000 (2012) |
| 10, Welbeck Avenue, Darlington | Freehold | 92 m² | £138,000 (2017) |
| 12, Welbeck Avenue, Darlington | Freehold | 80 m² | £150,000 (2021) |
| 14, Welbeck Avenue, Darlington | Freehold | 84 m² | £138,000 (2020) |
| 16, Welbeck Avenue, Darlington | Freehold | 104 m² | £160,000 (2019) |
| 20 Welbeck Avenue, Darlington | Freehold | 98 m² | £160,000 (2022) |
| 22, Welbeck Avenue, Darlington | Freehold | 87 m² | £103,000 (2012) |
| 24, Welbeck Avenue, Darlington | Freehold | 98 m² | £140,000 (2020) |
| 26, Welbeck Avenue, Darlington | Freehold | 84 m² | £135,000 (2019) |
| 28 Welbeck Avenue, Darlington | Leasehold | 64 m² | £34,000 (2004) |
| 30, Welbeck Avenue, Darlington | - | 67 m² | - |
| 34, Welbeck Avenue, Darlington | - | 74 m² | - |
| 40, Welbeck Avenue, Darlington | - | 74 m² | - |
| 44 Welbeck Avenue, Darlington | - | 68 m² | - |
| 46 Welbeck Avenue, Darlington | - | 70 m² | - |
| 48 Welbeck Avenue, Darlington | - | 69 m² | - |
| 50 Welbeck Avenue, Darlington | - | 65 m² | - |
| 52 Welbeck Avenue, Darlington | - | 67 m² | - |
| 54, Welbeck Avenue, Darlington | - | 69 m² | - |
| 58 Welbeck Avenue, Darlington | - | 95 m² | - |
| 60, Welbeck Avenue, Darlington | Freehold | 74 m² | £118,000 (2024) |
| 62, Welbeck Avenue, Darlington | Freehold | 90 m² | £100,000 (2020) |
| 66 Welbeck Avenue, Darlington | Freehold | 74 m² | £85,555 (2022) |
| 68, Welbeck Avenue, Darlington | - | 73 m² | - |
| 72, Welbeck Avenue, Darlington | Freehold | 67 m² | £83,000 (2018) |
| 74, Welbeck Avenue, Darlington | - | 73 m² | - |
| 80, Welbeck Avenue, Darlington | Freehold | 90 m² | £124,950 (2006) |
| 82, Welbeck Avenue, Darlington | Freehold | 84 m² | £33,000 (1995) |