| 131, Welbeck Avenue, Darlington | Freehold | 114 m² | £127,000 (2020) |
| 133, Welbeck Avenue, Darlington | Freehold | 90 m² | £108,000 (2016) |
| 135, Welbeck Avenue, Darlington | - | 84 m² | - |
| 137, Welbeck Avenue, Darlington | Freehold | 116 m² | £130,000 (2021) |
| 139 Welbeck Avenue, Darlington | Freehold | 98 m² | £85,000 (2013) |
| 141 Welbeck Avenue, Darlington | - | 88 m² | - |
| 143 Welbeck Avenue, Darlington | - | 71 m² | - |
| 145 Welbeck Avenue, Darlington | - | 65 m² | - |
| 147 Welbeck Avenue, Darlington | - | 60 m² | - |
| 149 Welbeck Avenue, Darlington | - | 58 m² | - |
| 151 Welbeck Avenue, Darlington | - | 69 m² | - |
| 153 Welbeck Avenue, Darlington | - | 65 m² | - |
| 155, Welbeck Avenue, Darlington | - | 63 m² | - |
| 157 Welbeck Avenue, Darlington | - | 68 m² | - |
| 159 Welbeck Avenue, Darlington | - | 69 m² | - |
| 161, Welbeck Avenue, Darlington | - | 63 m² | - |
| 163 Welbeck Avenue, Darlington | - | 58 m² | - |
| 165 Welbeck Avenue, Darlington | - | 65 m² | - |
| 167 Welbeck Avenue, Darlington | - | 48 m² | - |
| 169, Welbeck Avenue, Darlington | - | 87 m² | - |
| 171, Welbeck Avenue, Darlington | Freehold | 92 m² | £130,000 (2020) |
| 173, Welbeck Avenue, Darlington | Freehold | 87 m² | £117,000 (2017) |
| 176, Welbeck Avenue, Darlington | Freehold | 74 m² | £71,000 (2014) |
| 178, Welbeck Avenue, Darlington | Freehold | 73 m² | £87,500 (2006) |
| 184 Welbeck Avenue, Darlington | Freehold | 72 m² | £100,000 (2021) |
| 188, Welbeck Avenue, Darlington | Freehold | 74 m² | £93,000 (2008) |
| 192 Welbeck Avenue, Darlington | - | 95 m² | - |
| 194 Welbeck Avenue, Darlington | - | 88 m² | - |
| 196, Welbeck Avenue, Darlington | Freehold | 112 m² | £140,000 (2007) |
| 198, Welbeck Avenue, Darlington | - | 86 m² | - |
