| 84 Welbeck Avenue, Darlington | - | 89 m² | - |
| 84A Welbeck Avenue, Darlington | - | 86 m² | - |
| 86, Welbeck Avenue, Darlington | - | 77 m² | - |
| 86A, Welbeck Avenue, Darlington | - | 88 m² | - |
| 88 Welbeck Avenue, Darlington | - | 74 m² | - |
| 88A Welbeck Avenue, Darlington | - | 79 m² | - |
| 96 Welbeck Avenue, Darlington | Freehold | 89 m² | £75,000 (2025) |
| 98, Welbeck Avenue, Darlington | - | 90 m² | - |
| 102 Welbeck Avenue, Darlington | Freehold | 88 m² | £108,000 (2009) |
| 106 Welbeck Avenue, Darlington | Freehold | 90 m² | £116,000 (2025) |
| 110 Welbeck Avenue, Darlington | - | 91 m² | - |
| 112 Welbeck Avenue, Darlington | - | 88 m² | - |
| 116, Welbeck Avenue, Darlington | - | 85 m² | - |
| 118, Welbeck Avenue, Darlington | - | 88 m² | - |
| 120, Welbeck Avenue, Darlington | Freehold | 87 m² | £97,500 (2016) |
| 128, Welbeck Avenue, Darlington | - | 87 m² | - |
| 134, Welbeck Avenue, Darlington | Freehold | 107 m² | £115,000 (2017) |
| 136, Welbeck Avenue, Darlington | - | 76 m² | - |
| 138, Welbeck Avenue, Darlington | Freehold | 76 m² | £79,000 (2012) |
| 140, Welbeck Avenue, Darlington | - | 70 m² | - |
| 142 Welbeck Avenue, Darlington | - | 73 m² | - |
| 144, Welbeck Avenue, Darlington | - | 74 m² | - |
| 146 Welbeck Avenue, Darlington | - | 74 m² | - |
| 148, Welbeck Avenue, Darlington | Freehold | 73 m² | £66,500 (2016) |
| 150 Welbeck Avenue, Darlington | - | 74 m² | - |
| 152 Welbeck Avenue, Darlington | Freehold | 89 m² | £132,000 (2026) |
| 154, Welbeck Avenue, Darlington | - | 87 m² | - |
| 156, Welbeck Avenue, Darlington | - | 59 m² | - |
| 158, Welbeck Avenue, Darlington | - | 64 m² | - |
| 160, Welbeck Avenue, Darlington | - | 68 m² | - |
| 162 Welbeck Avenue, Darlington | - | 69 m² | - |
| 164, Welbeck Avenue, Darlington | - | 88 m² | - |
| 168 Welbeck Avenue, Darlington | - | 88 m² | - |
| 170, Welbeck Avenue, Darlington | - | 88 m² | - |
| 172, Welbeck Avenue, Darlington | Freehold | 88 m² | £97,500 (2016) |
