| 122, Northumberland Avenue, Welling | Freehold | 78 m² | £400,000 (2018) |
| 124, Northumberland Avenue, Welling | Freehold | 124 m² | £515,000 (2020) |
| 128, Northumberland Avenue, Welling | Freehold | 89 m² | £226,000 (2012) |
| 130 Northumberland Avenue, Welling | Freehold | 86 m² | £210,000 (2006) |
| 136, Northumberland Avenue, Welling | Freehold | 78 m² | £360,000 (2019) |
| 138 Northumberland Avenue, Welling | Freehold | 51 m² | £365,000 (2019) |
| 142, Northumberland Avenue, Welling | Freehold | 92 m² | £400,000 (2015) |
| 144 Northumberland Avenue, Welling, Welling | Freehold | 78 m² | £231,750 (2007) |
| 146, Northumberland Avenue, Welling | Freehold | 92 m² | £450,000 (2020) |
| 148, Northumberland Avenue, Welling | Freehold | 92 m² | £422,500 (2016) |
| 150, Northumberland Avenue, Welling | - | 139 m² | - |
| 156, Northumberland Avenue, Welling | Freehold | 147 m² | £530,000 (2020) |
| 158 Northumberland Avenue, Welling, Welling | Freehold | 61 m² | £400,000 (2021) |
| 162, Northumberland Avenue, Welling | Freehold | 63 m² | £321,000 (2017) |
| 164, Northumberland Avenue, Welling | Leasehold | 74 m² | £42,000 (1998) |
| 166 Northumberland Avenue, Welling | Freehold | 78 m² | £407,995 (2023) |
| 182, Northumberland Avenue, Welling | - | 122 m² | - |
| 184, Northumberland Avenue, Welling | - | 78 m² | - |
| 186, Northumberland Avenue, Welling | Freehold | 84 m² | £225,000 (2011) |
| 196, Northumberland Avenue, Welling | Freehold | 130 m² | £445,000 (2015) |
| 198, Northumberland Avenue, Welling | Freehold | 62 m² | £255,000 (2018) |
| 202, Northumberland Avenue, Welling | Freehold | 103 m² | £465,000 (2020) |
| 206, Northumberland Avenue, Welling | Freehold | 63 m² | £385,000 (2017) |
| 210, Northumberland Avenue, Welling | Freehold | 83 m² | £455,000 (2021) |
| 214 Northumberland Avenue, Welling | Freehold | 66 m² | £490,000 (2025) |
| 216, Northumberland Avenue, Welling | Freehold | 61 m² | £350,000 (2021) |
| 220 Northumberland Avenue, Welling | Freehold | 65 m² | £398,000 (2025) |
| 224, Northumberland Avenue, Welling | Freehold | 60 m² | £300,000 (2015) |
| 230, Northumberland Avenue, Welling | - | 81 m² | - |
| 232, Northumberland Avenue, Welling | Freehold | 122 m² | £430,000 (2017) |